Dashboard / CVE-2026-111809

CVE-2026-111809

CRITICAL
INFO Priority: 0.02 BB Relevance: 79/100
Published: 2026-10-21 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: Low
I: High
A: None

Description

Apache Traffic Server allows request smuggling via HEAD requests that carry Content-Length or Transfer-Encoding. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.

Weakness Classification (1)

Affected Software (8)

VendorProductVersion
Apache Software Foundation Apache Traffic Server 8.0.0
Apache Software Foundation Apache Traffic Server 9.0.0
Apache Software Foundation Apache Traffic Server 10.0.0
Apache Software Foundation Apache Traffic Server 10.2.0
Apache Software Foundation Apache Traffic Server 8.0.0
Apache Software Foundation Apache Traffic Server 9.0.0
Apache Software Foundation Apache Traffic Server 10.0.0
Apache Software Foundation Apache Traffic Server 10.2.0

References & Advisories (1)

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

EPSS — Exploitation Probability

0.22%
Raw Score 0.002180
Percentile 12.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00218
2026-10-28
0.00218

Intelligence Sources

mitre ref →
nvd ref →

External Links