CVE-2026-12797

BerriAI litellm Completions banned_keywords.py async_pre_call_hook authorization

LOW 2.1EPSS 0.4%

A security flaw has been discovered in BerriAI litellm up to 1.82.5. Affected is the function async_pre_call_hook of the file enterprise/enterprise_hooks/banned_keywords.py of the component Completions Interface. The manipulation of the argument prompt results in incorrect authorization. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure.

Affected: BerriAI · litellm
CVSS v4.0 VULDB: 2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v4.0 GitHub: 2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS v3.1 VULDB: 6.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v2.0 VULDB: 6.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS: 0.40% chance of exploitation in the next 30 days, 33rd percentile
Published: 2026-06-21
Updated: 2026-06-22

Proof-of-concept exploits (1)

https://gist.github.com/YLChen-007/078179224f07cc4e39e4f141a18c817a

CVE-2026-12797

Proof-of-concept exploits (1)

Security advisories

References