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CVE-2026-22990libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
- 7.5HighCVSS base score
- 0.40%Exploitation in 30 daysEPSS · top 65% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() If the osdmap is (maliciously) corrupted such that the incremental osdmap epoch is different from what is expected, there is no need to BUG. Instead, just declare the incremental osdmap to be invalid.
Timeline
ID reserved
By Linux
- 10 days later
· 10 days later
Published
- 9 months later
· 9 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 65% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < 9aa0b0c14cefece078286d78b97d4c09685e372d
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < 4b106fbb1c7b841cd402abd83eb2447164c799ea
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < 6afd2a4213524bc742b709599a3663aeaf77193c
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < d3613770e2677683e65d062da5e31f48c409abe9
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < 6c6cec3db3b418c4fdf815731bc39e46dff75e1b
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < 6348d70af847b79805374fe628d3809a63fd7df3
- affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 – < e00c3f71b5cf75681dbd74ee3f982a99cb690c2b
- affected 2.6.34
- unaffected < 2.6.34
- unaffected 5.10.248 – ≤ 5.10.*
- unaffected 5.15.198 – ≤ 5.15.*
- unaffected 6.1.161 – ≤ 6.1.*
- unaffected 6.6.121 – ≤ 6.6.*
- unaffected 6.12.66 – ≤ 6.12.*
- unaffected 6.18.6 – ≤ 6.18.*
- unaffected 6.19 – ≤ *
References
References7
- https://git.kernel.org/stable/c/9aa0b0c14cefece078286d78b97d4c09685e372d (opens in a new tab)
- https://git.kernel.org/stable/c/4b106fbb1c7b841cd402abd83eb2447164c799ea (opens in a new tab)
- https://git.kernel.org/stable/c/6afd2a4213524bc742b709599a3663aeaf77193c (opens in a new tab)
- https://git.kernel.org/stable/c/d3613770e2677683e65d062da5e31f48c409abe9 (opens in a new tab)
- https://git.kernel.org/stable/c/6c6cec3db3b418c4fdf815731bc39e46dff75e1b (opens in a new tab)
- https://git.kernel.org/stable/c/6348d70af847b79805374fe628d3809a63fd7df3 (opens in a new tab)
- https://git.kernel.org/stable/c/e00c3f71b5cf75681dbd74ee3f982a99cb690c2b (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-4287 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-22990)Record last updated .