CVEvulnerability

CVE-2026-91766

5.9 MEDIUM Published 2026-09-25 Modified 2026-10-23 Official page ↗
Status
Analyzed
Published
2026-09-25
Last modified
2026-10-23
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200, CWE-522

Description

When the http:// stream wrapper follows a redirect it forwards the user-supplied Authorization, Cookie and Proxy-Authorization headers unchanged, even when the redirect target is a different host, a different port, or a downgrade from HTTPS to HTTP. A server that can steer a redirect therefore receives credentials that were only meant for the original origin. This is the same class of issue that libcurl fixed in 7.58.0 ( CVE-2018-1000007 https://github.com/advisories/GHSA-g7x2-hrfp-pv5f ).

Affected configurations

• php php (>= 8.2.0 < 8.2.34) • php php (>= 8.3.0 < 8.3.35) • php php (>= 8.4.0 < 8.4.26) • php php (>= 8.5.0 < 8.5.11)

Related

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-522 Insufficiently Protected Credentials weakness

References