Mod auth openidc: Global-buffer-overflow in oidc_cfg_redirect_urls_allowed_get
A global buffer overflow vulnerability exists in the mod-auth-openidc module within the function oidc_cfg_redirect_urls_allowed_get, as reported by OSS-Fuzz. This vulnerability involves an out-of-bounds read of 8 bytes. A patch is available to address this issue.
AI Analysis
Technical Summary
The mod-auth-openidc module contains a global buffer overflow vulnerability triggered in the function oidc_cfg_redirect_urls_allowed_get. This was identified through OSS-Fuzz testing, which revealed an out-of-bounds read of 8 bytes during the validation of redirect URLs. The vulnerability is confirmed by the crash state involving oidc_validate_redirect_url and fuzz_url.c. No CVSS score is provided, but a patch is available to remediate the issue.
Potential Impact
The vulnerability allows a global buffer overflow condition, which can lead to memory corruption. This may result in application crashes or potentially enable further exploitation depending on the context of use. No known exploits in the wild have been reported.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix provided by the mod-auth-openidc maintainers or OSS-Fuzz project as soon as possible to prevent exploitation.
Mod auth openidc: Global-buffer-overflow in oidc_cfg_redirect_urls_allowed_get
Description
A global buffer overflow vulnerability exists in the mod-auth-openidc module within the function oidc_cfg_redirect_urls_allowed_get, as reported by OSS-Fuzz. This vulnerability involves an out-of-bounds read of 8 bytes. A patch is available to address this issue.
Affected software
pkg:generic/mod-auth-openidcRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The mod-auth-openidc module contains a global buffer overflow vulnerability triggered in the function oidc_cfg_redirect_urls_allowed_get. This was identified through OSS-Fuzz testing, which revealed an out-of-bounds read of 8 bytes during the validation of redirect URLs. The vulnerability is confirmed by the crash state involving oidc_validate_redirect_url and fuzz_url.c. No CVSS score is provided, but a patch is available to remediate the issue.
Potential Impact
The vulnerability allows a global buffer overflow condition, which can lead to memory corruption. This may result in application crashes or potentially enable further exploitation depending on the context of use. No known exploits in the wild have been reported.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix provided by the mod-auth-openidc maintainers or OSS-Fuzz project as soon as possible to prevent exploitation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2026-1189
- Osv Schema Version
- 1.8.0
- Aliases
- []
- Ecosystems
- ["OSS-Fuzz"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a8af9a6acd9273b49f32fb1
Added to database: 08/23/2026, 13:46:14 UTC
Last enriched: 08/23/2026, 13:52:00 UTC
Last updated: 08/23/2026, 19:17:05 UTC
Views: 8
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