CVE-2026-14457

Aliases:DEBIAN-CVE-2026-14457UBUNTU-CVE-2026-14457ALPINE-CVE-2026-14457CGA-35c3-q5pq-33gcCGA-3p74-6595-jgf5CGA-76vj-3852-4j3gCGA-79m7-3rq6-5j5wCGA-9jh2-3h5f-gxw4CGA-c869-f247-fq3gCGA-h7q5-7hgh-74hmCGA-jj9r-wmvq-c983CGA-m2rf-j79c-j7xhCGA-v66f-cmxf-r3wpCGA-wmgj-29gc-5f7wCGA-wxfp-hvw9-hg7pCGA-x7f5-hjr6-8qfvCGA-xwfj-hq7w-64q2
Advisory lineage Upstream: 0 Downstream: 13
Analyzed
Published: 25 Aug 2026, 12:58
Last modified:25 Aug 2026, 14:13

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.98% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Aug 2026, 12:58
Published
Vulnerability first disclosed
25 Aug 2026, 14:13
Last Modified
Vulnerability information updated

Description

Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) configured locally, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted "signature_algorithms_cert" TLS extension. Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible. CWE: CWE-476: NULL Pointer Dereference Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA). When the private key is configured along with a matching certificate, the "signature_algorithms_cert" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key. Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below. FIPS impact: no No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module boundary.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.98%• Percentile: 61%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • alpine•openssl

    < 3.5.8-r0 | < 3.5.8-r0 | < 3.5.8-r0 | ≥ 3.4.0, < 3.5.8-r0 | ≥ 3.4.0, < 3.5.8-r0 | ≥ 3.4.0, < 3.5.8-r0

  • chainguard•eco-python-openssl-4

    all | < 4.0.2-r0

  • chainguard•eco-python-openssl-4-pyca

    all | < 4.0.2-r0

  • chainguard•eco-python-openssl-4-pyca-dev

    all | < 4.0.2-r0

  • chainguard•openssl-provider-fips-3.4.0

    all | < 0

  • chainguard•openssl-provider-fips-3.4.0-dbg

    all

  • chainguard•openssl-provider-fips-3.6.0

    all

  • chainguard•openssl-provider-fips-3.6.0-dbg

    all | < 0

  • debian•openssl

    all | < 3.5.7-1~deb13u2 | < 3.6.4-1

  • ubuntu•edk2

    all

  • ubuntu•edk2-hwe

    all

  • ubuntu•nodejs

    all

  • ubuntu•openssl

    < 3.5.5-1ubuntu3.4

  • ubuntu•openssl-fips

    all

  • openssl•openssl

    ≥ 3.4.0, < 3.4.7 | ≥ 3.5.0, < 3.5.8 | ≥ 3.6.0, < 3.6.4 | ≥ 4.0.0, < 4.0.2

References (12)