Vulnerability Description
ALOS HTTP is a Linux-first Go web framework and application server built around a custom networking stack. Prior to 0.0.0-20260617230736-314b6783e196, core/utils.go::sanitizeRequestPath calls splitPathQuery on a request path beginning with a question mark and then performs the unchecked p[0] access without checking whether the resulting path is empty. An unauthenticated client can send a malformed request such as a question-mark-only path through h1_plain.go::ParseH1RequestHead, hpack.go::decodeSimpleGetPathHTTPSRequest, hpack.go::observeHeader, or h3_conn.go::handleRequestStream, causing an out-of-bounds panic before core.Recovery() middleware runs and terminating the server process. This issue is fixed in pseudo-version 0.0.0-20260617230736-314b6783e196.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/guno1928/alos-http/commit/314b6783e19698c85ea9d9b197ff52f7f6a
- https://github.com/guno1928/alos-http/security/advisories/GHSA-hr6j-w4mw-g9mj
- https://github.com/guno1928/alos-http/security/advisories/GHSA-hr6j-w4mw-g9mj
FAQ
What is CVE-2026-55484?
CVE-2026-55484 is a vulnerability with a CVSS score of 7.5 (HIGH). ALOS HTTP is a Linux-first Go web framework and application server built around a custom networking stack. Prior to 0.0.0-20260617230736-314b6783e196, core/utils.go::sanitizeRequestPath calls splitPat...
How severe is CVE-2026-55484?
CVE-2026-55484 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55484?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.