Common Weakness Enumeration

CWE-295

Allowed

Improper Certificate Validation

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not validate, or incorrectly validates, a certificate.

2327 vulnerabilities reference this CWE, most recent first.

CVE-2026-101916 (GCVE-0-2026-101916)

Vulnerability from cvelistv5 – Published: 2026-09-28 20:01 – Updated: 2026-10-01 14:54
VLAI
Title
@grpc/grpc-js: In certain configurations, getAuthContext can return unauthorized certificates as though they were authorized
Summary
@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, getAuthContext does not distinguish authorized from unauthorized peer certificates when server credentials set requireClientCertificate to false. When applications use the returned authentication context, they can treat an unauthorized certificate as authorized, causing improper authentication. @grpc/grpc-js-xds can reach this condition when RBAC authentication is enabled in affected configurations. This issue is fixed in version 1.14.5 and 1.13.6.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:54 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7613 records in the last 180 days details
References
Impacted products
Vendor Product Version
grpc grpc-node Affected: < 1.13.6
Affected: >= 1.14.0, < 1.14.5
Create a notification for this product.
Show details on NVD website
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CVE-2026-100835 (GCVE-0-2026-100835)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-30 15:16
VLAI
Title
Contrast before 1.16.0 Remote Attestation Relay Attack
Summary
Contrast before 1.16.0 is susceptible to remote attestation relay attacks. Contrast accepted any TEE attestation report that verified correctly and contained the expected firmware patch levels and software measurements, regardless of which machine produced it, so attestation was not bound to specific, physically trusted hardware. An attacker who can both intercept network traffic between the CLI and the Coordinator (or between the Coordinator and an attested component) and forge reports or extract secrets from any single TEE machine under their physical control can relay such a report to impersonate a Contrast Coordinator or a Contrast workload, defeating identity verification in Contrast's attested TLS (aTLS).
Severity
9.1 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:15 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6518 records in the last 180 days details
References
Impacted products
Vendor Product Version
edgelesssys contrast Affected: 0 , < 1.16.0 (semver)
Unaffected: 1.16.0 (semver)
Create a notification for this product.
Date Public
2026-07-29 00:00
Credits
muhammad-usama-sardar
Show details on NVD website
To clipboard 

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CVE-2026-100701 (GCVE-0-2026-100701)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-26 23:11
VLAI
Title
Nodemailer 5.0.0 through 10.0.1 TLS servername Cache Confusion
Summary
Nodemailer versions 5.0.0 through 10.0.1 use a process-global DNS cache that is keyed only by the DNS host, while each cache entry also stores the caller-specific TLS servername. When two direct TLS/SMTPS transports (secure: true) resolve the same non-IP host with different tls.servername values, the first transport's servername is returned on the cache hit and overwrites the second transport's explicitly configured value, so Nodemailer sends the wrong SNI value and validates the peer certificate against the wrong identity. In multi-tenant services or SNI-routed SMTP gateways, an attacker who can prime the cache can cause a victim transport to connect to the attacker's TLS virtual host and accept the attacker's certificate even with rejectUnauthorized: true, disclosing the victim's SMTP credentials. Fixed in 10.0.2.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:11 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6518 records in the last 180 days details
References
Impacted products
Vendor Product Version
nodemailer nodemailer Affected: 5.0.0 , < 10.0.2 (semver)
Unaffected: 10.0.2 (semver)
    cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-10 00:00
Credits
ry2811
Show details on NVD website
To clipboard 

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CVE-2026-100665 (GCVE-0-2026-100665)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-10-02 15:46
VLAI
Title
Netty 4.2.11 through 4.2.17 QUIC Hostname Verification Bypass
Summary
Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC certificate verification path when using a plain X509TrustManager. The BoringSSLCertificateVerifyCallback discards the SSLEngine for plain trust managers, preventing endpoint identification from running even when HTTPS verification is configured. Attackers on the network path can present a certificate chain for the wrong hostname that the plain trust manager accepts, bypassing hostname authentication for QUIC clients.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 15:46 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6518 records in the last 180 days details
References
Impacted products
Vendor Product Version
netty netty Affected: 4.2.11.Final , < 4.2.18.Final (custom)
Unaffected: 4.2.18.Final (custom)
    cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-10 00:00
Credits
rexpository
Show details on NVD website
To clipboard 

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CVE-2026-100551 (GCVE-0-2026-100551)

Vulnerability from cvelistv5 – Published: 2026-09-26 02:18 – Updated: 2026-10-05 14:55
VLAI
Title
OpenClaw iOS Control UI TLS Pin Enforcement Bypass
Summary
OpenClaw for iOS versions >= 2026.7.1 and < 2026.8.11 do not enforce saved Gateway TLS pins in the Control UI. While native connections enforced the saved Gateway fingerprint, the authenticated Terminal and session Dashboard WebViews omitted it. If a user had accepted a Gateway fingerprint, an attacker able to redirect the same host and port and present a different certificate that is accepted by iOS system trust can serve a replacement Control UI page; opening the Terminal or a session Dashboard then allows that page to read the injected Gateway token or password. The stolen credential can grant operator access, including reading sensitive Gateway state and invoking host-capable tools. This issue is fixed in 2026.8.11.
Severity
9 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.3 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 14:04 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6518 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 2026.7.1 , < 2026.8.11 (semver)
Unaffected: 2026.8.11 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-11 00:00
Credits
0xca1x migraine-sudo
Show details on NVD website
To clipboard 

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CVE-2026-100123 (GCVE-0-2026-100123)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-17 00:52
VLAI
Title
CAI Content Credentials | Improper Certificate Validation (CWE-295)
Summary
CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-17 00:52 UTC
CWE
  • CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.15 (custom)
Unaffected: c2pa-v0.91.1 (custom)
Create a notification for this product.
Adobe C2PA Tool Affected: 0 , ≤ c2patool-v0.27.15 (custom)
Unaffected: v0.28.1 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.13.4 (custom)
Unaffected: @contentauth/c2pa-web@0.15.3 (custom)
Create a notification for this product.
Date Public
2026-10-13 17:00
Show details on NVD website
To clipboard 

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CVE-2026-100122 (GCVE-0-2026-100122)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-14 19:28
VLAI
Title
CAI Content Credentials | Improper Certificate Validation (CWE-295)
Summary
CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 19:27 UTC
CWE
  • CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.15 (custom)
Unaffected: c2pa-v0.91.1 (custom)
Create a notification for this product.
Adobe C2PA Tool Affected: 0 , ≤ c2patool-v0.27.15 (custom)
Unaffected: v0.28.1 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.13.4 (custom)
Unaffected: @contentauth/c2pa-web@0.15.3 (custom)
Create a notification for this product.
Date Public
2026-10-13 17:00
Show details on NVD website
To clipboard 

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CVE-2026-100121 (GCVE-0-2026-100121)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-15 15:10
VLAI
Title
CAI Content Credentials | Improper Certificate Validation (CWE-295)
Summary
CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:13 UTC
CWE
  • CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.15 (custom)
Unaffected: c2pa-v0.91.1 (custom)
Create a notification for this product.
Adobe C2PA Tool Affected: 0 , ≤ c2patool-v0.27.15 (custom)
Unaffected: v0.28.1 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.13.4 (custom)
Unaffected: @contentauth/c2pa-web@0.15.3 (custom)
Create a notification for this product.
Date Public
2026-10-13 17:00
Show details on NVD website
To clipboard 

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CVE-2026-100118 (GCVE-0-2026-100118)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-17 00:51
VLAI
Title
CAI Content Credentials | Improper Certificate Validation (CWE-295)
Summary
CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-17 00:51 UTC
CWE
  • CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.15 (custom)
Unaffected: c2pa-v0.91.1 (custom)
Create a notification for this product.
Adobe C2PA Tool Affected: 0 , ≤ c2patool-v0.27.15 (custom)
Unaffected: v0.28.1 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.13.4 (custom)
Unaffected: @contentauth/c2pa-web@0.15.3 (custom)
Create a notification for this product.
Date Public
2026-10-13 17:00
Show details on NVD website
To clipboard 

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CVE-2026-100116 (GCVE-0-2026-100116)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-15 15:10
VLAI
Title
CAI Content Credentials | Improper Certificate Validation (CWE-295)
Summary
CAI Content Credentials is affected by an Improper Certificate Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 16:11 UTC
CWE
  • CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.15 (custom)
Unaffected: c2pa-v0.91.1 (custom)
Create a notification for this product.
Adobe C2PA Tool Affected: 0 , ≤ c2patool-v0.27.15 (custom)
Unaffected: v0.28.1 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.13.4 (custom)
Unaffected: @contentauth/c2pa-web@0.15.3 (custom)
Create a notification for this product.
Date Public
2026-10-13 17:00
Show details on NVD website
To clipboard 

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            "modifiedScope": "UNCHANGED",
            "modifiedUserInteraction": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
            "temporalScore": 5.9,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "Improper Certificate Validation (CWE-295)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T21:27:36.254Z",
        "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "shortName": "adobe"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.adobe.com/trust/security/products/content-credentials-sdk/apsb26-163.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "CAI Content Credentials | Improper Certificate Validation (CWE-295)",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
    "assignerShortName": "adobe",
    "cveId": "CVE-2026-100116",
    "datePublished": "2026-10-13T21:27:36.254Z",
    "dateReserved": "2026-09-25T11:19:19.065Z",
    "dateUpdated": "2026-10-15T15:10:24.517Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Architecture and Design Implementation

Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.

Mitigation
Implementation

If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

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