Vulnerability-Lookup

VAR-202602-3168

Vulnerability from variot - Updated: 2026-03-03 23:27

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. 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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CVE-2026-27585 (GCVE-0-2026-27585)

Vulnerability from cvelistv5 – Published: 2026-02-24 16:06 – Updated: 2026-02-26 21:17

Title

Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections

Summary

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 20:58 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7606 records in the last 180 days details

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

Show details on NVD website

JSON

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                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T20:58:09.807973Z",
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      "title": "Caddy\u0027s improper sanitization of glob characters in file matcher may lead to bypassing security protections"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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VAR-202602-3168

CVE-2026-27585 (GCVE-0-2026-27585)

Tags

Sightings

Nomenclature

Related by attack behaviour