CVE-2025-3891 — Uncaught Exception in Linux

CWE-248 — Uncaught Exception6 documents6 sources

Severity

7.5HIGHNVD

EPSS

1.3%

top 20.00%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Debian Linux Redhat Enterprise Linux

Timeline

PublishedApr 29

Description

A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allows a remote, unauthenticated attacker to trigger a denial of service by sending an empty POST request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages0 packages

Also affects: Debian Linux 11.0, Enterprise Linux 7.0, 8.0, 9.0

🔴Vulnerability Details

CVEList

Mod_auth_openidc: dos via empty post in mod_auth_openidc with oidcpreservepost enabled↗2025-04-29

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GHSA

GHSA-v96g-5j57-774c: A flaw was found in the mod_auth_openidc module for Apache httpd↗2025-04-29

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OSV

CVE-2025-3891: A flaw was found in the mod_auth_openidc module for Apache httpd↗2025-04-29

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📋Vendor Advisories

Red Hat

mod_auth_openidc: DoS via Empty POST in mod_auth_openidc with OIDCPreservePost Enabled↗2025-04-29

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Debian

CVE-2025-3891: libapache2-mod-auth-openidc - A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allo...↗2025

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