Moderate severityNVD Advisory· Published Jul 29, 2026· Updated Jul 29, 2026
linuxfabrik-lib: fetch() forwards credential headers across a cross-origin redirect
CVE-2026-67435
Description
linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 6.0.0, lib.url.fetch() followed cross-origin redirects while forwarding caller-supplied credential headers other than Authorization and Cookie, allowing a malicious redirect-capable server to receive headers such as X-Auth-Token from authenticated monitoring requests. This issue is fixed in version 6.0.0.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
linuxfabrik-libPyPI | < 6.0.0 | 6.0.0 |
Affected products
1- Range: <6.0.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-4jc5-g844-4x33ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-67435ghsaADVISORY
- github.com/Linuxfabrik/lib/commit/6573ff9347e541200305d278d2663d2e54e052ffghsax_refsource_MISCWEB
- github.com/Linuxfabrik/lib/releases/tag/v6.0.0ghsax_refsource_MISCWEB
- github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-4jc5-g844-4x33ghsax_refsource_CONFIRMWEB
News mentions
0No linked articles in our index yet.