SpdyStream: DOS on CRI_CVE-2026-35469

8.7 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Description

spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes — all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.

AI Analysis

Remote memory exhaustion vulnerability via crafted SPDY frames

Basic Information

ID CVE-2026-35469

Source GitHub_M

Published Apr 16, 2026 at 21:19

Affected Product

Vendor moby

Product spdystream

Version < 0.5.1

Affected Versions moby spdystream < 0.5.1

CWE Classification

CWE-770

AI Assessment

AI Score 8.7 / 10

AI Severity High

Vendor Moby

Product spdystream

Version 0.5.0 and below

References

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    "published": "2026-04-16T21:19:23.516Z",
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    "title": "SpdyStream: DOS on CRI",
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