Vulnerability Description
When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte decides which redirect target is built, so a malicious server controls whether the client is sent to the host root or to the current directory.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/php/php-src/security/advisories/GHSA-7875-c8px-7q5f
- https://github.com/php/php-src/security/advisories/GHSA-7875-c8px-7q5f
FAQ
What is CVE-2026-93682?
CVE-2026-93682 is a vulnerability with a CVSS score of 5.8 (MEDIUM). When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. T...
How severe is CVE-2026-93682?
CVE-2026-93682 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-93682?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.