MediumVulnerability

CVE-2026-126395: vLLM information disclosure via uppercase PIL image addresses in error messages

Source: NVD(opens in a new tab)
Identifier: CVE-2026-126395
Published: November 13, 2026
Record updated: November 13, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.4%

Summary

vLLM versions from 0.14.0rc1 before 0.31.0 contain an information disclosure flaw in sanitize_message(). Its lowercase-only regex fails to scrub uppercase PIL image addresses from error messages. An unauthenticated attacker can send a crafted PNG to endpoints such as /tokenize, triggering HF-processor errors that leak live server heap addresses useful for ASLR bypass.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 5.3(medium)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector: network
Attack complexity: low
Privileges required: none
User interaction: none
EPSS: 0.4%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 13, 2026.
Disclosure date: November 13, 2026

Weaknesses and techniques

Weakness (CWE): CWE-532
Attack pattern (CAPEC): CAPEC-215

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Inference
Impact: Confidentiality
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-126395

First tracked: November 13, 2026 at 01:10 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 95% (self-assessed)

Topics

Inference infrastructure

Summary

Mitigation

Topics

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