uhttpd is a small HTTP server. In unpatched repository snapshots, client_parse_header() in client.c lowercases header names but compares the Transfer-Encoding value to chunked using case-sensitive strcmp. A mixed-case transfer-coding token is accepted without enabling r->transfer...
Product
openwrt uhttpd vulnerabilities
3 published CVES affecting openwrt uhttpd, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 3
- Critical
- 0
- High
- 0
- Medium
- 2
- Low
- 1
- Unscored
- 0
- CISA KEV
- 0
Latest openwrt uhttpd CVEs
Newest publication first
-
MediumCVSS 6.9 EPSS 0.40%
-
CVE-2026-55612 uhttpd vulnerable to HTTP request smuggling via invalid chunk-length state reset
PublishedLowCVSS 3.7 EPSS 0.29%uhttpd is a small HTTP server. In unpatched repository snapshots, client_poll_post_data() in client.c consumes an invalid chunk-length line, such as a size exceeding INT_MAX, then clears r->content_length and r->transfer_chunked without draining the remaining body or setting requ...
-
MediumCVSS 6.9 EPSS 0.40%
uhttpd is a small HTTP server. In unpatched repository snapshots, uh_ubus_data_send() in ubus.c can desynchronize HTTP request boundaries when a POST /ubus JSON body arrives in multiple TCP segments. An initial segment completing a JSON object sets du->jsobj; a later segment take...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.