CVE-2026-91767 Affecting php8-devel package, versions <8.0.30-150400.4.76.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-SLES155-PHP8DEVEL-20969211
  • published15 Oct 2026
  • disclosed13 Oct 2026

Introduced: 13 Oct 2026

NewCVE-2026-91767  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 php8-devel to version 8.0.30-150400.4.76.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php8-devel package and not the php8-devel package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.

CVSS Base Scores

version 3.1