01 Record

CVE-2026-46119

libceph: Fix slab-out-of-bounds access in auth message processing

CriticalPUBLISHEDCNA: Linux

CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

View raw JSON

02 Description

libceph: Fix slab-out-of-bounds access in auth message processing

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.2% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD analysis status

Undergoing Analysis. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-28 09:35Z5 MO AGO

Last updated

2026-10-19 19:26Z9 DAYS AGO

Reserved

2026-05-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses

CWE-787Out-of-bounds WriteBase
CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

74bc8180a9a8f7d1dcf28a4a05c49b6942330452a35c13a9af254608c4491851

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < c2374b92c729d0388a538b3cde7b3e3b5e55ef39, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < 38fdf04c602d52c42c67fc1617211492753b7e8b, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < 2ae0afd98432536562fa8261538ae795446f0589, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < 408e85ee708b6aa03eeb0220ffa0915f4d407181, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < b7df9fbd4869fdfe09a3f501ffd228486521e062, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < 8517b6c8d2c759918ba0058cb6c7e14d59643202, 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc to < 1c439de70b1c3eb3c6bffa8245c16b9fc318f114, 2.6.34—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/c2374b92c729d0388a538b3cde7b3e3b5e55ef39
git.kernel.orghttps://git.kernel.org/stable/c/38fdf04c602d52c42c67fc1617211492753b7e8b
git.kernel.orghttps://git.kernel.org/stable/c/2ae0afd98432536562fa8261538ae795446f0589
git.kernel.orghttps://git.kernel.org/stable/c/408e85ee708b6aa03eeb0220ffa0915f4d407181
git.kernel.orghttps://git.kernel.org/stable/c/b7df9fbd4869fdfe09a3f501ffd228486521e062
git.kernel.orghttps://git.kernel.org/stable/c/8517b6c8d2c759918ba0058cb6c7e14d59643202
git.kernel.orghttps://git.kernel.org/stable/c/1c439de70b1c3eb3c6bffa8245c16b9fc318f114

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.88-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.