CVE-2026-13082 GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets
Attackers can predict CAPTCHA challenges in GD::SecurityImage due to weak random number generation, bypassing bot protection mechanisms.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13082?
CVE-2026-13082 is a medium-severity vulnerability in BURAK GD::SecurityImage, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets.
The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string.
The built-in rand function is unsuitable for security applications because it is predictable and reversible.
Which versions are affected by CVE-2026-13082?
How do I fix CVE-2026-13082?
No fix has been published for CVE-2026-13082 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13082 being exploited?
There is no known exploitation of CVE-2026-13082 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-13082, GHSA-p496-rgmp-v9mg, UBUNTU-CVE-2026-13082.