CVE-2026-82877 ILIAS Arbitrary File Read via SOAP addFile
Authenticated attackers can read arbitrary server files, including credentials, via crafted XML in the SOAP addFile method.
- 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-2026-82877?
CVE-2026-82877 is a high-severity path traversal vulnerability in ILIAS-eLearning e.V. ILIAS, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ILIAS before versions 9.22, 10.10, and 11.3 contains an arbitrary file read vulnerability in the SOAP addFile method that allows authenticated users to read server files by supplying crafted XML with COPY-mode imports. Attackers can construct absolute file paths through an unsandboxed import directory and retrieve sensitive files including configuration files containing database credentials and setup passwords.
Weakness: CWE-22
Which versions are affected by CVE-2026-82877?
How do I fix CVE-2026-82877?
No fix has been published for CVE-2026-82877 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-82877 being exploited?
There is no known exploitation of CVE-2026-82877 in the wild and no public exploit code.
Sources
Also known as GHSA-pmmj-hr44-h52v.