Medium severity4.7OSV Advisory· Published Jul 8, 2026· Updated Jul 13, 2026
CVE-2026-59883
CVE-2026-59883
Description
Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
guzzlehttp/guzzlePackagist | < 7.12.3 | 7.12.3 |
Affected products
5- osv-coords2 versions
< 31.0.14-r5+ 1 more
- (no CPE)range: < 31.0.14-r5
- (no CPE)range: < 31.0.14-r5
Patches
Vulnerability mechanics
References
6- github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8nvdPatchWEB
- github.com/guzzle/guzzle/pull/3694nvdIssue TrackingPatchWEB
- github.com/advisories/GHSA-g446-98w2-8p5wghsaADVISORY
- github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5wnvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-59883ghsaADVISORY
- github.com/guzzle/guzzle/releases/tag/7.12.3nvdRelease NotesWEB
News mentions
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