CVE-2026-68452
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
s390/zcrypt: Validate length for CCA AES cipher key requests
cca_cipher2protkey() derives the copy length for the CPRB parameter
block directly from the length field in the key token. Reject the
request early if the token length exceeds the available space in the
parameter block.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace.
We have provided these links to other web sites because they
may have information that would be of interest to you. No
inferences should be drawn on account of other sites being
referenced, or not, from this page. There may be other web
sites that are more appropriate for your purpose. NIST does
not necessarily endorse the views expressed, or concur with
the facts presented on these sites. Further, NIST does not
endorse any commercial products that may be mentioned on
these sites. Please address comments about this page to [email protected]
Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:51 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/4e500ecb6704d879f9c2417c2ed6faba595015ca
Added
Reference
https://git.kernel.org/stable/c/7f9e5a3dbb14a9b321a1dfa30390402c673f82dc
Added
Reference
https://git.kernel.org/stable/c/be037204e4f595e4bd2159acda146677a1dc6342
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"406b317ea2b501f6f5eca1264293c9399a73a778","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4fc46deceda076d429ef3fab2ccf8d96629ebd23","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"ad93a1f1a45652478c0cf4eb029114e03af57f3b","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"3859f630b674801a00bca39bc451f52288591f65","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"06afe425d5283b9764303de47f554da5a808ce8a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"6.6.151","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.103","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2483 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"be037204e4f595e4bd2159acda146677a1dc6342","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4e500ecb6704d879f9c2417c2ed6faba595015ca","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"7f9e5a3dbb14a9b321a1dfa30390402c673f82dc","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"406b317ea2b501f6f5eca1264293c9399a73a778","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4fc46deceda076d429ef3fab2ccf8d96629ebd23","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"ad93a1f1a45652478c0cf4eb029114e03af57f3b","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"3859f630b674801a00bca39bc451f52288591f65","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"06afe425d5283b9764303de47f554da5a808ce8a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.151","lessThanOrEqual":"6.
CVE Modified by kernel.org
8/17/2026 2:17:54 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"406b317ea2b501f6f5eca1264293c9399a73a778","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4fc46deceda076d429ef3fab2ccf8d96629ebd23","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"ad93a1f1a45652478c0cf4eb029114e03af57f3b","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"3859f630b674801a00bca39bc451f52288591f65","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"06afe425d5283b9764303de47f554da5a808ce8a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"6.6.151","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.103","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc6","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"406b317ea2b501f6f5eca1264293c9399a73a778","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4fc46deceda076d429ef3fab2ccf8d96629ebd23","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"ad93a1f1a45652478c0cf4eb029114e03af57f3b","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"3859f630b674801a00bca39bc451f52288591f65","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"06afe425d5283b9764303de47f554da5a808ce8a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"6.6.151","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.103","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:38 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
New CVE Received from kernel.org
8/13/2026 11:19:57 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
s390/zcrypt: Validate length for CCA AES cipher key requests
cca_cipher2protkey() derives the copy length for the CPRB parameter
block directly from the length field in the key token. Reject the
request early if the token length exceeds the available space in the
parameter block.
Added
Reference
https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a
Added
Reference
https://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65
Added
Reference
https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778
Added
Reference
https://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23
Added
Reference
https://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"406b317ea2b501f6f5eca1264293c9399a73a778","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"4fc46deceda076d429ef3fab2ccf8d96629ebd23","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"ad93a1f1a45652478c0cf4eb029114e03af57f3b","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"3859f630b674801a00bca39bc451f52288591f65","versionType":"git","status":"affected"},{"version":"4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd","lessThan":"06afe425d5283b9764303de47f554da5a808ce8a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/crypto/zcrypt_ccamisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"6.6.151","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.103","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc6","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68452 NVD
Published Date: 08/13/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
