GHSA-VCCG-35R5-8JRF: `Stream_EnsureCapacity` still overflows to `new_capacity == 0` after the CVE-2026-27951 fix — `realloc(p, 0)` abandons a dangling `s->buffer`, reached pre-auth from a hostile RD Gateway as a double free · Advisory · FreeRDP/FreeRDP · GitHub

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PublisherGitHub

Article IDGHSA-VCCG-35R5-8JRF

Verified snapshot26 Sept 2026, 16:54 UTC

Linked CVEs1

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CVE-2026-91960FreeRDP before 3.31.0 Integer Overflow Double Free

Source and provenance

Original title: `Stream_EnsureCapacity` still overflows to `new_capacity == 0` after the CVE-2026-27951 fix — `realloc(p, 0)` abandons a dangling `s->buffer`, reached pre-auth from a hostile RD Gateway as a double free · Advisory · FreeRDP/FreeRDP · GitHub. Captured 26 Sept 2026, 16:54 UTC. The stored article is used for enrichment and change detection; BlackTree does not republish the publisher's full text here.

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