What’s Vulnerable › Vulnerabilities

CVE-2026-46291: crypto: caam - guard HMAC key hex dumps in hash_digest_key

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-08 · updated 2026-07-23

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - guard HMAC key hex dumps in hash_digest_key Use print_hex_dump_devel() for dumping sensitive HMAC key bytes in hash_digest_key() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled.

Affected products

• Linux kernel: from 3.6 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30 — fixed in 5.10.259, 5.15.210, 6.1.176, 6.12.88, 6.18.30, 6.6.140

How to fix

Upgrade to a fixed version: Linux kernel 5.10.259, 5.15.210, 6.1.176, 6.12.88. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/177730a273b18e195263ed953853273e901b5064
• https://git.kernel.org/stable/c/2adbfca7452eeac45117b8e803288a2767f7075f
• https://git.kernel.org/stable/c/5cffe3c136891aa4d579bf5c079a68f7cb371b0c
• https://git.kernel.org/stable/c/a9207798fe619cbc85c8744a9b9e2af1db2b6e1a
• https://git.kernel.org/stable/c/b8f12d9b00c1950779e5679b9c13908584682bb6
• https://git.kernel.org/stable/c/c7e52fe3f7901ccb9cd29b3f7c683d809ba87e48
• https://git.kernel.org/stable/c/cd849c07b8d706425e60a4dfcef54b7b67c967ce
• https://git.kernel.org/stable/c/e8e72fdf47bd5ef7abe642b034c6178a61a8580a

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