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39 vulnerabilities found for caddy by caddyserver
VAR-202310-0175
Vulnerability from variot - Updated: 2026-04-10 22:02The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Debian Security Advisory DSA-5540-1 security@debian.org https://www.debian.org/security/ Markus Koschany October 30, 2023 https://www.debian.org/security/faq
Package : jetty9 CVE ID : CVE-2023-36478 CVE-2023-44487
Two remotely exploitable security vulnerabilities were discovered in Jetty 9, a Java based web server and servlet engine. The HTTP/2 protocol implementation did not sufficiently verify if HPACK header values exceed their size limit. This problem is also known as Rapid Reset Attack.
For the oldstable distribution (bullseye), these problems have been fixed in version 9.4.50-4+deb11u1.
For the stable distribution (bookworm), these problems have been fixed in version 9.4.50-4+deb12u2.
We recommend that you upgrade your jetty9 packages.
For the detailed security status of jetty9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/jetty9
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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Description:
Red Hat AMQ Streams, based on the Apache Kafka project, offers a distributed backbone that allows microservices and other applications to share data with extremely high throughput and extremely low latency. This could result in denial of service.
Description:
nghttp2 contains the Hypertext Transfer Protocol version 2 (HTTP/2) client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C.
Description:
Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.
Description:
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET 6.0 to SDK 6.0.123 and Runtime 6.0.23.
The following advisory data is extracted from:
https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7481.json
Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.
- Packet Storm Staff
==================================================================== Red Hat Security Advisory
Synopsis: Important: OpenShift Container Platform 4.11.54 packages and security update Advisory ID: RHSA-2023:7481-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2023:7481 Issue date: 2023-11-29 Revision: 01 CVE Names: CVE-2023-44487 ====================================================================
Summary:
Red Hat OpenShift Container Platform release 4.11.54 is now available with updates to packages and images that fix several bugs and add enhancements.
This release includes a security update for Red Hat OpenShift Container Platform 4.11.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description:
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.
This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.11.54. See the following advisory for the container images for this release:
https://access.redhat.com/errata/RHSA-2023:7479
Security Fix(es):
- HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
All OpenShift Container Platform 4.11 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.11/updating/updating-cluster-cli.html
Solution:
https://docs.openshift.com/container-platform/4.11/release_notes/ocp-4-11-release-notes.html
CVEs:
CVE-2023-44487
References:
https://access.redhat.com/security/updates/classification/#important https://bugzilla.redhat.com/show_bug.cgi?id=2242803
. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202408-10
https://security.gentoo.org/
Severity: Normal Title: nghttp2: Multiple Vulnerabilities Date: August 07, 2024 Bugs: #915554, #928541 ID: 202408-10
Synopsis
Multiple vulnerabilities have been discovered in nghttp2, the worst of which could lead to a denial of service.
Background
Nghttp2 is an implementation of HTTP/2 and its header compression algorithm HPACK in C.
Affected packages
Package Vulnerable Unaffected
net-libs/nghttp2 < 1.61.0 >= 1.61.0
Description
Multiple vulnerabilities have been discovered in nghttp2. Please review the CVE identifiers referenced below for details.
Impact
Please review the referenced CVE identifiers for details.
Workaround
There is no known workaround at this time.
Resolution
All nghttp2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/nghttp2-1.61.0"
References
[ 1 ] CVE-2023-44487 https://nvd.nist.gov/vuln/detail/CVE-2023-44487 [ 2 ] CVE-2024-28182 https://nvd.nist.gov/vuln/detail/CVE-2024-28182
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202408-10
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2024 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
Show details on source website{
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"data": "The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5540-1 security@debian.org\nhttps://www.debian.org/security/ Markus Koschany\nOctober 30, 2023 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : jetty9\nCVE ID : CVE-2023-36478 CVE-2023-44487\n\nTwo remotely exploitable security vulnerabilities were discovered in Jetty 9, a\nJava based web server and servlet engine. The HTTP/2 protocol implementation\ndid not sufficiently verify if HPACK header values exceed their size limit. This\nproblem is also known as Rapid Reset Attack. \n\nFor the oldstable distribution (bullseye), these problems have been fixed\nin version 9.4.50-4+deb11u1. \n\nFor the stable distribution (bookworm), these problems have been fixed in\nversion 9.4.50-4+deb12u2. \n\nWe recommend that you upgrade your jetty9 packages. \n\nFor the detailed security status of jetty9 please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/jetty9\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\nE8ThC0Q+lbZ4nth0vw2R93ObMfzlxZN2YJUqKf3aw/yAKd8YIys=CO/+\n-----END PGP SIGNATURE-----\n. \n\n\n\n\nDescription:\n\nRed Hat AMQ Streams, based on the Apache Kafka project, offers a distributed backbone that allows microservices and other applications to share data with extremely high throughput and extremely low latency. This could result\nin denial of service. \n\n\n\n\nDescription:\n\nnghttp2 contains the Hypertext Transfer Protocol version 2 (HTTP/2) client, server, and proxy programs as well as a library implementing the HTTP/2 protocol in C. \n\n\n\n\nDescription:\n\nNode.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. \n\n\n\n\nDescription:\n\n.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. \n\nNew versions of .NET that address a security vulnerability are now available. The updated versions are .NET 6.0 to SDK 6.0.123 and Runtime 6.0.23. \n\nThe following advisory data is extracted from:\n\nhttps://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7481.json\n\nRed Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat\u0027s archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. \n\n- Packet Storm Staff\n\n\n\n\n====================================================================\nRed Hat Security Advisory\n\nSynopsis: Important: OpenShift Container Platform 4.11.54 packages and security update\nAdvisory ID: RHSA-2023:7481-01\nProduct: Red Hat OpenShift Enterprise\nAdvisory URL: https://access.redhat.com/errata/RHSA-2023:7481\nIssue date: 2023-11-29\nRevision: 01\nCVE Names: CVE-2023-44487\n====================================================================\n\nSummary: \n\nRed Hat OpenShift Container Platform release 4.11.54 is now available with updates to packages and images that fix several bugs and add enhancements. \n\nThis release includes a security update for Red Hat OpenShift Container Platform 4.11. \n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. \n\n\n\n\nDescription:\n\nRed Hat OpenShift Container Platform is Red Hat\u0027s cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. \n\nThis advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.11.54. See the following advisory for the container images for this release:\n\nhttps://access.redhat.com/errata/RHSA-2023:7479\n\nSecurity Fix(es):\n\n* HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS\nattack (Rapid Reset Attack) (CVE-2023-44487)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. \n\nAll OpenShift Container Platform 4.11 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.11/updating/updating-cluster-cli.html\n\n\nSolution:\n\nhttps://docs.openshift.com/container-platform/4.11/release_notes/ocp-4-11-release-notes.html\n\n\n\nCVEs:\n\nCVE-2023-44487\n\nReferences:\n\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2242803\n\n. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 202408-10\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: Normal\n Title: nghttp2: Multiple Vulnerabilities\n Date: August 07, 2024\n Bugs: #915554, #928541\n ID: 202408-10\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been discovered in nghttp2, the worst of\nwhich could lead to a denial of service. \n\nBackground\n==========\n\nNghttp2 is an implementation of HTTP/2 and its header compression\nalgorithm HPACK in C. \n\nAffected packages\n=================\n\nPackage Vulnerable Unaffected\n---------------- ------------ ------------\nnet-libs/nghttp2 \u003c 1.61.0 \u003e= 1.61.0\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in nghttp2. Please review\nthe CVE identifiers referenced below for details. \n\nImpact\n======\n\nPlease review the referenced CVE identifiers for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll nghttp2 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-libs/nghttp2-1.61.0\"\n\nReferences\n==========\n\n[ 1 ] CVE-2023-44487\n https://nvd.nist.gov/vuln/detail/CVE-2023-44487\n[ 2 ] CVE-2024-28182\n https://nvd.nist.gov/vuln/detail/CVE-2024-28182\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/202408-10\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2024 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttps://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-202602-3168
Vulnerability from variot - Updated: 2026-03-03 23:27Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue. 2.11.1 This issue has been fixed.Some of the information handled by the software may be leaked to the outside. Also, some of the information handled by the software may be rewritten. Furthermore, the software will not stop. Furthermore, attacks that exploit this vulnerability will not affect other software
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VAR-202602-3216
Vulnerability from variot - Updated: 2026-03-03 23:25Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list (>100 entries) it becomes case-sensitive due to an optimized matching path. An attacker can bypass host-based routing and any access controls attached to that route by changing the casing of the Host header. Version 2.11.1 contains a fix for the issue. This issue is fixed in version 2.11.1 has been fixed.All information handled by the software may be leaked to the outside. All information handled by the software may be rewritten. Furthermore, the software will not stop. Furthermore, attacks that exploit this vulnerability will not affect other software
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VAR-201811-0674
Vulnerability from variot - Updated: 2024-11-23 23:11Caddy through 0.11.0 sends incorrect certificates for certain invalid requests, making it easier for attackers to enumerate hostnames. Specifically, when unable to match a Host header with a vhost in its configuration, it serves the X.509 certificate for a randomly selected vhost in its configuration. Repeated requests (with a nonexistent hostname in the Host header) permit full enumeration of all certificates on the server. This generally permits an attacker to easily and accurately discover the existence of and relationships among hostnames that weren't meant to be public, though this information could likely have been discovered via other methods with additional effort. Caddy Contains an information disclosure vulnerability.Information may be obtained
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VAR-202206-0033
Vulnerability from variot - Updated: 2024-11-23 22:40Caddy v2.4 was discovered to contain an open redirect vulnerability. A remote unauthenticated attacker may exploit this vulnerability to redirect users to arbitrary web URLs by tricking the victim users to click on crafted links. Light Code Labs of Caddy Exists in an open redirect vulnerability.Information may be obtained and information may be tampered with
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Vulnerability from variot - Updated: 2024-11-23 22:21Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode. Caddy There is an authentication vulnerability in.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. Caddy is an open source, cross-platform HTTP/Web server. Attackers can use this vulnerability to bypass authentication
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VAR-202312-1601
Vulnerability from variot - Updated: 2024-08-14 15:10The caddy-geo-ip (aka GeoIP) middleware through 0.6.0 for Caddy 2, when trust_header X-Forwarded-For is used, allows attackers to spoof their source IP address via an X-Forwarded-For header, which may bypass a protection mechanism (trusted_proxy directive in reverse_proxy or IP address range restrictions).
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VAR-202207-1821
Vulnerability from variot - Updated: 2024-08-14 15:06An out-of-bounds read in the rewrite function at /modules/caddyhttp/rewrite/rewrite.go in Caddy v2.5.1 allows attackers to cause a Denial of Service (DoS) via a crafted URI. Note: This has been disputed as a bug, not a security vulnerability, in the Caddy web server that emerged when an administrator's bad configuration containing a malformed request URI caused the server to return an empty reply instead of a valid HTTP response to the client
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CVE-2026-30852 (GCVE-0-2026-30852)
Vulnerability from nvd – Published: 2026-03-07 16:28 – Updated: 2026-03-09 18:24
VLAI
Title
Caddy: vars_regexp double-expands user input, leaking env vars and files
Summary
Caddy is an extensible server platform that uses TLS by default. From version 2.7.5 to before version 2.11.2, the vars_regexp matcher in vars.go:337 double-expands user-controlled input through the Caddy replacer. When vars_regexp matches against a placeholder like {http.request.header.X-Input}, the header value gets resolved once (expected), then passed through repl.ReplaceAll() again (the bug). This means an attacker can put {env.DATABASE_URL} or {file./etc/passwd} in a request header and the server will evaluate it, leaking environment variables, file contents, and system info. This issue has been patched in version 2.11.2.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/pull/5408 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
>= 2.7.5, < 2.11.2
|
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CVE-2026-30851 (GCVE-0-2026-30851)
Vulnerability from nvd – Published: 2026-03-07 16:28 – Updated: 2026-03-09 18:24
VLAI
Title
Caddy forward_auth copy_headers Does Not Strip Client-Supplied Headers, Allowing Identity Injection and Privilege Escalation
Summary
Caddy is an extensible server platform that uses TLS by default. From version 2.10.0 to before version 2.11.2, forward_auth copy_headers does not strip client-supplied headers, allowing identity injection and privilege escalation. This issue has been patched in version 2.11.2.
Severity
8.1 (High)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/issues/6610 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/pull/6608 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/pull/7545 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
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CVE-2026-27590 (GCVE-0-2026-27590)
Vulnerability from nvd – Published: 2026-02-24 16:33 – Updated: 2026-02-27 20:52
VLAI
Title
Caddy: Unicode case-folding length expansion causes incorrect split_path index (SCRIPT_NAME/PATH_INFO confusion) in FastCGI transport
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's FastCGI path splitting logic computes the split index on a lowercased copy of the request path and then uses that byte index to slice the original path. This is unsafe for Unicode because `strings.ToLower()` can change UTF-8 byte length for some characters. As a result, Caddy can derive an incorrect `SCRIPT_NAME`/`SCRIPT_FILENAME` and `PATH_INFO`, potentially causing a request that contains `.php` to execute a different on-disk file than intended (path confusion). In setups where an attacker can control file contents (e.g., upload features), this can lead to unintended PHP execution of non-.php files (potential RCE depending on deployment). Version 2.11.1 fixes the issue.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/php/frankenphp/security/adviso… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27589 (GCVE-0-2026-27589)
Vulnerability from nvd – Published: 2026-02-24 16:30 – Updated: 2026-02-27 20:51
VLAI
Title
Caddy vulnerable to cross-origin config application via local admin API /load (caddy)
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces the entire running configuration. When origin enforcement is not enabled (`enforce_origin` not configured), the admin endpoint accepts cross-origin requests (e.g., from attacker-controlled web content in a victim browser) and applies an attacker-supplied JSON config. This can change the admin listener settings and alter HTTP server behavior without user intent. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
| https://github.com/user-attachments/files/2507981… | x_refsource_MISC |
| https://github.com/user-attachments/files/2507982… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27588 (GCVE-0-2026-27588)
Vulnerability from nvd – Published: 2026-02-24 16:28 – Updated: 2026-02-27 20:47
VLAI
Title
Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `host` request matcher is documented as case-insensitive, but when configured with a large host list (>100 entries) it becomes case-sensitive due to an optimized matching path. An attacker can bypass host-based routing and any access controls attached to that route by changing the casing of the `Host` header. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27587 (GCVE-0-2026-27587)
Vulnerability from nvd – Published: 2026-02-24 16:26 – Updated: 2026-02-27 20:48
VLAI
Title
Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `path` request matcher is intended to be case-insensitive, but when the match pattern contains percent-escape sequences (`%xx`) it compares against the request's escaped path without lowercasing. An attacker can bypass path-based routing and any access controls attached to that route by changing the casing of the request path. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27586 (GCVE-0-2026-27586)
Vulnerability from nvd – Published: 2026-02-24 16:08 – Updated: 2026-02-26 20:56
VLAI
Title
Caddy's mTLS client authentication silently fails open when CA certificate file is missing or malformed
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, two swallowed errors in `ClientAuthentication.provision()` cause mTLS client certificate authentication to silently fail open when a CA certificate file is missing, unreadable, or malformed. The server starts without error but accepts any client certificate signed by any system-trusted CA, completely bypassing the intended private CA trust boundary. Any deployment using `trusted_ca_cert_file` or `trusted_ca_certs_pem_files` for mTLS will silently degrade to accepting any system-trusted client certificate if the CA file becomes unavailable. This can happen due to a typo in the path, file rotation, corruption, or permission changes. The server gives no indication that mTLS is misconfigured. Version 2.11.1 fixes the vulnerability.
Severity
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://gist.github.com/moscowchill/9566c79c76c0b… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27585 (GCVE-0-2026-27585)
Vulnerability from nvd – Published: 2026-02-24 16:06 – Updated: 2026-02-26 21:17
VLAI
Title
Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue.
Severity
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/blob/68d5002… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/blob/68d5002… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2023-50463 (GCVE-0-2023-50463)
Vulnerability from nvd – Published: 2023-12-10 00:00 – Updated: 2024-08-02 22:16
VLAI
Summary
The caddy-geo-ip (aka GeoIP) middleware through 0.6.0 for Caddy 2, when trust_header X-Forwarded-For is used, allows attackers to spoof their source IP address via an X-Forwarded-For header, which may bypass a protection mechanism (trusted_proxy directive in reverse_proxy or IP address range restrictions).
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from nvd – Published: 2023-10-10 00:00 – Updated: 2026-05-12 10:52
VLAI
CISA KEV
Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
144 references
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"name": "[debian-lts-announce] 20231105 [SECURITY] [DLA 3645-1] trafficserver security update",
"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00001.html"
},
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"tags": [
"vendor-advisory"
],
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},
{
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"tags": [
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"tags": [
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],
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},
{
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"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00012.html"
},
{
"name": "GLSA-202311-09",
"tags": [
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"url": "https://security.gentoo.org/glsa/202311-09"
},
{
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"tags": [
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],
"url": "https://www.debian.org/security/2023/dsa-5570"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240426-0007/"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240621-0006/"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240621-0007/"
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},
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"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http2-reset-d8Kf32vZ"
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CVE-2022-28923 (GCVE-0-2022-28923)
Vulnerability from nvd – Published: 2023-02-06 00:00 – Updated: 2025-03-26 18:38
VLAI
Summary
Caddy v2.4.6 was discovered to contain an open redirection vulnerability which allows attackers to redirect users to phishing websites via crafted URLs.
Severity
6.1 (Medium)
CWE
- n/a
Assigner
References
1 reference
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CVE-2026-30851 (GCVE-0-2026-30851)
Vulnerability from cvelistv5 – Published: 2026-03-07 16:28 – Updated: 2026-03-09 18:24
VLAI
Title
Caddy forward_auth copy_headers Does Not Strip Client-Supplied Headers, Allowing Identity Injection and Privilege Escalation
Summary
Caddy is an extensible server platform that uses TLS by default. From version 2.10.0 to before version 2.11.2, forward_auth copy_headers does not strip client-supplied headers, allowing identity injection and privilege escalation. This issue has been patched in version 2.11.2.
Severity
8.1 (High)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/issues/6610 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/pull/6608 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/pull/7545 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
>= 2.10.0, < 2.11.2
|
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CVE-2026-30852 (GCVE-0-2026-30852)
Vulnerability from cvelistv5 – Published: 2026-03-07 16:28 – Updated: 2026-03-09 18:24
VLAI
Title
Caddy: vars_regexp double-expands user input, leaking env vars and files
Summary
Caddy is an extensible server platform that uses TLS by default. From version 2.7.5 to before version 2.11.2, the vars_regexp matcher in vars.go:337 double-expands user-controlled input through the Caddy replacer. When vars_regexp matches against a placeholder like {http.request.header.X-Input}, the header value gets resolved once (expected), then passed through repl.ReplaceAll() again (the bug). This means an attacker can put {env.DATABASE_URL} or {file./etc/passwd} in a request header and the server will evaluate it, leaking environment variables, file contents, and system info. This issue has been patched in version 2.11.2.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/pull/5408 | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
>= 2.7.5, < 2.11.2
|
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CVE-2026-27590 (GCVE-0-2026-27590)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:33 – Updated: 2026-02-27 20:52
VLAI
Title
Caddy: Unicode case-folding length expansion causes incorrect split_path index (SCRIPT_NAME/PATH_INFO confusion) in FastCGI transport
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's FastCGI path splitting logic computes the split index on a lowercased copy of the request path and then uses that byte index to slice the original path. This is unsafe for Unicode because `strings.ToLower()` can change UTF-8 byte length for some characters. As a result, Caddy can derive an incorrect `SCRIPT_NAME`/`SCRIPT_FILENAME` and `PATH_INFO`, potentially causing a request that contains `.php` to execute a different on-disk file than intended (path confusion). In setups where an attacker can control file contents (e.g., upload features), this can lead to unintended PHP execution of non-.php files (potential RCE depending on deployment). Version 2.11.1 fixes the issue.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/php/frankenphp/security/adviso… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27589 (GCVE-0-2026-27589)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:30 – Updated: 2026-02-27 20:51
VLAI
Title
Caddy vulnerable to cross-origin config application via local admin API /load (caddy)
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces the entire running configuration. When origin enforcement is not enabled (`enforce_origin` not configured), the admin endpoint accepts cross-origin requests (e.g., from attacker-controlled web content in a victim browser) and applies an attacker-supplied JSON config. This can change the admin listener settings and alter HTTP server behavior without user intent. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
| https://github.com/user-attachments/files/2507981… | x_refsource_MISC |
| https://github.com/user-attachments/files/2507982… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27588 (GCVE-0-2026-27588)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:28 – Updated: 2026-02-27 20:47
VLAI
Title
Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `host` request matcher is documented as case-insensitive, but when configured with a large host list (>100 entries) it becomes case-sensitive due to an optimized matching path. An attacker can bypass host-based routing and any access controls attached to that route by changing the casing of the `Host` header. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27587 (GCVE-0-2026-27587)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:26 – Updated: 2026-02-27 20:48
VLAI
Title
Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `path` request matcher is intended to be case-insensitive, but when the match pattern contains percent-escape sequences (`%xx`) it compares against the request's escaped path without lowercasing. An attacker can bypass path-based routing and any access controls attached to that route by changing the casing of the request path. Version 2.11.1 contains a fix for the issue.
Severity
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27586 (GCVE-0-2026-27586)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:08 – Updated: 2026-02-26 20:56
VLAI
Title
Caddy's mTLS client authentication silently fails open when CA certificate file is missing or malformed
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, two swallowed errors in `ClientAuthentication.provision()` cause mTLS client certificate authentication to silently fail open when a CA certificate file is missing, unreadable, or malformed. The server starts without error but accepts any client certificate signed by any system-trusted CA, completely bypassing the intended private CA trust boundary. Any deployment using `trusted_ca_cert_file` or `trusted_ca_certs_pem_files` for mTLS will silently degrade to accepting any system-trusted client certificate if the CA file becomes unavailable. This can happen due to a typo in the path, file rotation, corruption, or permission changes. The server gives no indication that mTLS is misconfigured. Version 2.11.1 fixes the vulnerability.
Severity
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://gist.github.com/moscowchill/9566c79c76c0b… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2026-27585 (GCVE-0-2026-27585)
Vulnerability from cvelistv5 – Published: 2026-02-24 16:06 – Updated: 2026-02-26 21:17
VLAI
Title
Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections
Summary
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue.
Severity
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/caddyserver/caddy/security/adv… | x_refsource_CONFIRM |
| https://github.com/caddyserver/caddy/blob/68d5002… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/blob/68d5002… | x_refsource_MISC |
| https://github.com/caddyserver/caddy/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| caddyserver | caddy |
Affected:
< 2.11.1
|
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CVE-2023-50463 (GCVE-0-2023-50463)
Vulnerability from cvelistv5 – Published: 2023-12-10 00:00 – Updated: 2024-08-02 22:16
VLAI
Summary
The caddy-geo-ip (aka GeoIP) middleware through 0.6.0 for Caddy 2, when trust_header X-Forwarded-For is used, allows attackers to spoof their source IP address via an X-Forwarded-For header, which may bypass a protection mechanism (trusted_proxy directive in reverse_proxy or IP address range restrictions).
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from cvelistv5 – Published: 2023-10-10 00:00 – Updated: 2026-05-12 10:52
VLAI
CISA KEV
Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
144 references
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},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-44487",
"datePublished": "2023-10-10T00:00:00.000Z",
"dateReserved": "2023-09-29T00:00:00.000Z",
"dateUpdated": "2026-05-12T10:52:23.784Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}