CVE-2026-31842
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductTinyproxy
PublishedApr 7, 2026
First seenApr 7, 2026
Weakness typeCWE-444CWE-444
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tinyproxy_project tinyproxy | v ≤ 1.11.3 | — |
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