CVE-2026-14457

Name	CVE-2026-14457
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6465-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssl (PTS)	bullseye	1.1.1w-0+deb11u1	fixed
	bullseye (security)	1.1.1w-0+deb11u8	fixed
	bookworm, bookworm (security)	3.0.20-1~deb12u2	fixed
	trixie	3.5.6-1~deb13u2	vulnerable
	trixie (security)	3.5.7-1~deb13u2	fixed
	forky	3.6.3-1	vulnerable
	sid	3.6.4-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
openssl	source	bullseye	(not affected)
openssl	source	bookworm	(not affected)
openssl	source	trixie	3.5.7-1~deb13u2	DSA-6465-1
openssl	source	(unstable)	3.6.4-1

Notes

[bookworm] - openssl <not-affected> (Vulnerable code not present)
[bullseye] - openssl <not-affected> (Vulnerable code not present)
https://github.com/openssl/openssl/commit/dad836b071da6579510c968615848ba03cac593b (openssl-4.0.2)
https://github.com/openssl/openssl/commit/581aaa0f0a35d214740f0fe1f5283ec41f1212e1 (openssl-3.6.4)
https://github.com/openssl/openssl/commit/d0af20478688a6aa2f59d61caa3f82136b181d7f (openssl-3.5.8)
https://openssl-library.org/news/secadv/20260825.txt