VULNERABILITY INTELLIGENCE

CVE-2026-31842

CVSS score7.5 HIGH
EPSS probability0.57%
CISA KEVNot currently listed
Published2026-04-07
Last modified2026-08-10
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The is_chunked_transfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that transfer-coding names are case-insensitive.

Weakness classification

  • 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c: CWE-444

Primary references