BIT-php-2026-93682

vendorUSosv

Out-of-bounds read in the HTTP stream wrapper when following a redirect with an empty Location header

view advisory published 2026-10-01Licence: per source

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.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-93682US——
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 hol…
02

references

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