CVE-2026-46000
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix conn-level packet handling to unshare RESPONSE packets The security operations that verify the RESPONSE packets decrypt bits of it in place - however, the sk_buff may be shared with a packet sniffer, which would lead to the sniffer seeing an apparently corrupt packet (actually decrypted). Fix this by handing a copy of the packet off to the specific security handler if the packet was cloned.
Affected versions
Linux kernel versions
2.6.22
and later are affected. Fixed in
6.6.140,
6.12.88,
6.18.27,
7.0.4,
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46000 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/24481a7f573305706054c59e275371f8d0fe919f
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PatchKernel patch commithttps://git.kernel.org/stable/c/98a2046d155f73f6cf5d2c493c5e09b4963e2e12
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PatchKernel patch commithttps://git.kernel.org/stable/c/c0428a22daf69714dc042b67ea759956b74c74e5
Frequently asked questions
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What is CVE-2026-46000?
CVE-2026-46000 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.22 onward and has been patched in 6.6.140, 6.12.88, 6.18.27 and others. CVE-2026-46000 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-46000?
Yes — CVE-2026-46000 has been patched. Fixed versions include 6.6.140, 6.12.88, 6.18.27 and others. If you are running Linux kernel 2.6.22 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46000 actively exploited?
No — CVE-2026-46000 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.