High 7.0Published Jun 24, 2026

CVE-2026-52972crypto: af_alg - Cap AEAD AD length to 0x80000000

Updated under an hour ago (Oct 27, 2026, 6:40 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Cap AEAD AD length to 0x80000000 In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data length to 0x80000000.

CVSS: 7.0 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 400c40cf78da00c16e561a3a253ca272455c42ef before f8a5203596797f394ff3f9aa4005597a92249802; from 400c40cf78da00c16e561a3a253ca272455c42ef before a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d; from 400c40cf78da00c16e561a3a253ca272455c42ef before a4fe4eb580bbc7439f649a496d4cf38415a4021c; from 400c40cf78da00c16e561a3a253ca272455c42ef before e4c4a5074532eaaa14951994a3aad0d479aa7431; 400c40cf78da00c16e561a3a253ca272455c42ef builds before 265ac26d1c5e17b34d497cbda1f754a1ec8552bc; from 400c40cf78da00c16e561a3a253ca272455c42ef before a1c5672faf8e93e38c2deac3979cc767ca5cf918; from 400c40cf78da00c16e561a3a253ca272455c42ef before 97948906dc8e0ea84775e03e35b60a2063c70193; 400c40cf78da00c16e561a3a253ca272455c42ef builds before 0b3a57d218618cb1cc78ddc9ba02c07de84b46f4; and 1 more ranges	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	10	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.1 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10; from 7.1 before 7.2	NVD

References

References

https://git.kernel.org/stable/c/f8a5203596797f394ff3f9aa4005597a92249802	patch
https://git.kernel.org/stable/c/a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d	patch
https://git.kernel.org/stable/c/a4fe4eb580bbc7439f649a496d4cf38415a4021c	patch
https://git.kernel.org/stable/c/e4c4a5074532eaaa14951994a3aad0d479aa7431	patch
https://git.kernel.org/stable/c/265ac26d1c5e17b34d497cbda1f754a1ec8552bc	patch
https://git.kernel.org/stable/c/a1c5672faf8e93e38c2deac3979cc767ca5cf918	patch
https://git.kernel.org/stable/c/97948906dc8e0ea84775e03e35b60a2063c70193	patch
https://git.kernel.org/stable/c/0b3a57d218618cb1cc78ddc9ba02c07de84b46f4
https://git.kernel.org/stable/c/e4c06479d7059888adf2f22bc1ebcf053bf691a2	patch
https://access.redhat.com/security/cve/CVE-2026-52972	third-party-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.