Bug 2548336 (CVE-2026-97031) - CVE-2026-97031 crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references
Summary: CVE-2026-97031 crypto/tls: golang: crypto/tls: Denial of Service via multiple...
Keywords:
Status: NEW
Alias: CVE-2026-97031
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-08 23:01 UTC by OSIDB Bzimport
Modified: 2026-10-15 04:35 UTC (History)
76 users (show)

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Description OSIDB Bzimport 2026-10-08 23:01:22 UTC 
Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
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