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CVE-2026-27135 is a denial-of-service vulnerability in nghttp2 versions prior to 1.68.1. Following invocation of the public session-termination APIs nghttp2_session_terminate_session or nghttp2_session_terminate_session2, including internal invocation after a connection error, missing internal state validation can permit continued processing of incoming HTTP/2 data. A malformed HTTP/2 frame processed in this invalid post-termination state can cause a FRAME_SIZE_ERROR path to reach an assertion failure.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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48 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A denial-of-service vulnerability in nghttp2 triggered by malformed HTTP/2 frames after session termination.
A denial-of-service vulnerability in nghttp2 triggered by malformed HTTP/2 frames after session termination.
A denial-of-service vulnerability in nghttp2 caused by missing internal state validation after session termination, allowing a remote attacker to send crafted HTTP/2 frames that trigger an assertion failure and crash the service.
A denial-of-service vulnerability in nghttp2 triggered by malformed HTTP/2 frames after session termination.
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Cross-references every affected SKU, including bundled OEM variants.
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