CVE-2026-110761 ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import
Authenticated users with test import permissions can achieve remote code execution via PHP object injection in ILIAS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110761?
CVE-2026-110761 is a high-severity unsafe deserialization vulnerability in ILIAS-eLearning e.V. ILIAS, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ILIAS before 9.24, 10.12, and 11.5 contains a PHP object injection vulnerability that allows authenticated users with Test creation or import permission to deserialize arbitrary objects via crafted Test archives. Attackers can inject a malicious tst_sequence sequence attribute that is passed to unserialize(), abusing Guzzle or Monolog gadget chains to write PHP files and execute code.
Weakness: CWE-502
Which versions are affected by CVE-2026-110761?
How do I fix CVE-2026-110761?
No fix has been published for CVE-2026-110761 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-110761 being exploited?
There is no known exploitation of CVE-2026-110761 in the wild and no public exploit code.
Sources
Also known as GHSA-hvwc-vp6m-2mf8.