VulnerabilityPublished 27 May 2026Updated 6 Nov 2026

CVE-2026-46028: Linux kernel · crypto: algif_aead – snapshot IV for async AEAD requests

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in fa0fcec9b49d58e71df7ede91ecd86855f608e85 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in fa0fcec9b49d58e71df7ede91ecd86855f608e85, ebc235675f24b0e3f8bc92b8419471d42f837d8f, c2138c9bd02af19e0b407376140cd5435b0d81da +5

Exploitation evidence

Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < fa0fcec9b49d58e71df7ede91ecd86855f608e85	Fixed in fa0fcec9b49d58e71df7ede91ecd86855f608e85
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < ebc235675f24b0e3f8bc92b8419471d42f837d8f	Fixed in ebc235675f24b0e3f8bc92b8419471d42f837d8f
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < c2138c9bd02af19e0b407376140cd5435b0d81da	Fixed in c2138c9bd02af19e0b407376140cd5435b0d81da
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < a920cabdb0b7cf1f4e11a20524253ae5bd09092b	Fixed in a920cabdb0b7cf1f4e11a20524253ae5bd09092b
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < 46fdb39e83227b5d39f7c934a0947ea913f13c18	Fixed in 46fdb39e83227b5d39f7c934a0947ea913f13c18
LinuxLinux	Affected ≥ d887c52d6ae43aeebd249b5f2f1333e60236aa60, < 08ea39a556ecd39b33c2b4888861001c6706a62e	Fixed in 08ea39a556ecd39b33c2b4888861001c6706a62e

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - snapshot IV for async AEAD requests AF_ALG AEAD AIO requests currently use the socket-wide IV buffer during request processing. For async requests, later socket activity can update that shared state before the original request has fully completed, which can lead to inconsistent IV handling. Snapshot the IV into per-request storage when preparing the AEAD request, so in-flight operations no longer depend on mutable socket state.

References

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