CVE-2026-43304
critical · 9.8In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN When decoding the key, verify that the key material would fit into a fixed-size buffer in process_auth_done() and generally has a sane length. The new CEPH_MAX_KEY_LEN check replaces the existing check for a key with no key material which is a) not universal since CEPH_CRYPTO_NONE has to be excluded and b) doesn't provide much value since a smaller than needed key is just as invalid as no key -- this has to be handled elsewhere anyway.
9.8
CVSS
0.5%
EPSS (exploit prob.)
42nd
EPSS percentile
2026-05-08
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 5.11, < 5.15.202 |
| linux | linux_kernel | >= 5.16, < 6.1.165 |
| linux | linux_kernel | >= 6.2, < 6.6.128 |
| linux | linux_kernel | >= 6.7, < 6.12.75 |
| linux | linux_kernel | >= 6.13, < 6.18.16 |
| linux | linux_kernel | >= 6.19, < 6.19.6 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/1b275bd49e58752efb83767a5d1aed41356c5e64
- https://git.kernel.org/stable/c/6405e8c680974bb74e2c98d5249fb52c7b12a6c6
- https://git.kernel.org/stable/c/8d745d38c88ecbed95f6b2b39857bf89f35a3244
- https://git.kernel.org/stable/c/ac431d597a9bdfc2ba6b314813f29a6ef2b4a3bf
- https://git.kernel.org/stable/c/c1a0f5f1e5e7e98c36a362ec3d1fcfd9932931ed
- https://git.kernel.org/stable/c/d82467c07b03a27c3c5469b62bb3b726305a80bb
- https://git.kernel.org/stable/c/e1dc45d97975f9db65694d234fbddf1915176e16
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-43304