Vulnerability in Guimard Apache\
CVE-2026-8503
Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids. Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in ran…
EPSS: 0.000 (12.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Guimard Apache\ — versions \
- Guimard Apache::session::generate::sha256 — versions 0
Weakness classification (CWE)
References
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes, Release Notes)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (Product)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (Patch, patch)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related, Third Party Advisory)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-8503?
- CVE-2026-8503 is a medium-severity vulnerability in Guimard Apache\, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 6.5/10. Published 2026-05-15.
- How severe is CVE-2026-8503?
- Medium severity. CVSS v3 base score is 6.5 out of 10.