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VulnerabilityPublished

CVE-2026-114612: LiteLLM · Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key

Affects litellmSource GCVE Database

0
Authoritative record:CVE-2026-114612· Critical 9.9

Not known to be exploited · CVSS 9.9 Critical : upgrade to 1.100.4 as a priority.

Data as of 27 Oct 2026, 16:27 UTC

CVSS 3.1 base score
9.9Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.100.4, 1.101.3, 1.102.2 +2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
PyPIlitellmAffected
  • >=1.91.0 <1.100.4
Fixed in
  • 1.100.4
PyPIlitellmAffected
  • >=1.101.0 <1.101.3
Fixed in
  • 1.101.3
PyPIlitellmAffected
  • >=1.102.0 <1.102.2
Fixed in
  • 1.102.2
PyPIlitellmAffected
  • >=1.103.0 <1.103.1
Fixed in
  • 1.103.1
PyPIlitellmAffected
  • >=1.104.0rc1 <1.104.0rc2
Fixed in
  • 1.104.0rc2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

### Summary An authenticated user with `internal_user` privileges can escalate to `proxy_admin` and achieve remote code execution. The proxy uses one encryption key for two purposes: sealing secrets at rest and minting session tokens. An attacker exploits this by requesting a new API key with a crafted metadata field containing a forged admin credential as the "secret" value. The proxy encrypts and returns this payload. When this value is then presented as a bearer token, the proxy decrypts it, trusts the forged admin identity, and grants full administrative access, including the ability to execute arbitrary commands via the MCP stdio endpoint. ### Affected versions Versions later than 1.91.0 are exploitable in the default configuration. Versions 1.87.0 through 1.90.x are exploitable only if `EXPERIMENTAL_UI_LOGIN=true` was explicitly set. ### Mitigation Upgrade to a patched version as soon as possible. If you cannot upgrade immediately, set `EXPERIMENTAL_UI_LOGIN=false`. This disables the vulnerable authentication path but also breaks CLI SSO and Claude Code gateway login. ### Impact An internal user can escalate to proxy admin and execute arbitrary commands on the host. **Discovery Credit:** Hoa X. Nguyen (OPSWAT Unit 515)

References

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