AEGLIX vulnerability intelligence
CVE-2026-5081
CRITICAL · CVSS 9.1 · Modified
Published: 2026-05-06 · Updated: 2026-10-26 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:20:00.464883+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
Apache::Session::Generate::ModUniqueId versions from 1.54 through 1.94 for Perl session ids are insecure. Apache::Session::Generate::ModUniqueId (added in version 1.54) uses the value of the UNIQUE_ID environment variable for the session id. The UNIQUE_ID variable is set by the Apache mod_unique_id plugin, which generates unique ids for the request. The id is based on the IPv4 address, the process id, the epoch time, a 16-bit counter and a thread index, with no obfuscation. The server IP is often available to the public, and if not available, can be guessed from previous session ids being issued. The process ids may also be guessed from previous session ids. The timestamp is easily guessed (and leaked in the HTTP Date response header). The purpose of mod_unique_id is to assign a unique id to requests so that events can be correlated in different logs. The id is not designed, nor is it suitable for security purposes.
Patch review priority
Critical technical severity
- CVSS is at least 9.0; exploitation is not established by severity alone.
FIRST EPSS: 0.30% · percentile 22.8 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 9.1 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-340, CWE-341
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:chorny:apache\:\:session\:\:generate\:\:moduniqueid:*:*:*:*:*:perl:*:*
From (inclusive): 1.54
Through (inclusive): 1.94
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://httpd.apache.org/docs/current/mod/mod_unique_id.html
Product
- https://metacpan.org/pod/Apache::Session::Generate::Random
Product
- http://www.openwall.com/lists/oss-security/2026/05/06/6
Mailing List · Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-5081
- https://bugzilla.redhat.com/show_bug.cgi?id=2467174
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5081.json