CVE-2026-12773

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.02% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 60.7% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

NVD analysis status

Modified. NVD last modified this record on 2026-07-15.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-06-21 03:15Z2 MO AGO

Last updated

2026-07-15 01:22Z1 MO AGO

Reserved

2026-06-20

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-303Incorrect Implementation of Authentication AlgorithmBase

Data version

5.2

Document digest

bda724e2d2bb74ade8a2678472f861dd2a18a4b4a2dac7450ba2f09f08520537

• vuldb.comVDB-372515 | BerriAI litellm MCP Proxy user_api_key_auth_mcp.py UserAPIKeyAuth improper authenticationhttps://vuldb.com/vuln/372515vdb-entrytechnical-description
• vuldb.comVDB-372515 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/372515/ctisignaturepermissions-required
• vuldb.comCVE-2026-12773 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-12773third-party-advisory
• vuldb.comSubmit #811282 | litellm <= 1.59.8 Improper Authentication (CWE-287)https://vuldb.com/submit/811282third-party-advisory
• gist.github.comhttps://gist.github.com/YLChen-007/3cfaad10a69d7a15e4d4d458cb53309eexploit
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-12773vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2491112https://bugzilla.redhat.com/show_bug.cgi?id=2491112issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12773.jsonx_sadp-csaf-vex