CVE-2026-68157

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

libceph: guard missing CRUSH type name lookup

Localized read selection can walk a parent bucket whose name exists in the CRUSH map while its type has no matching entry in type_names. get_immediate_parent() then dereferences a NULL type_cn and passes an invalid pointer into strcmp(), causing a null-ptr-deref.

Skip such malformed parent buckets unless both the bucket name and type name metadata are present. This keeps malformed hierarchy data from crashing locality lookup and safely falls back to "not local".

[ idryomov: add WARN_ON_ONCE ]

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (5)

Auto-updated Aug 14, 2026
No patch confirmed yet.
generic

libceph: guard missing CRUSH type name lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d
generic

libceph: guard missing CRUSH type name lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c46d82c47afc968d6ee8ef4470fa2dd35b765c21
generic

libceph: guard missing CRUSH type name lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bbeae12fda3384a90fbebc8a19ba9d33f85b5361
generic

libceph: guard missing CRUSH type name lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4716a64b7cc2797741f7be4e283ace78a9dff37d
generic

libceph: guard missing CRUSH type name lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50

Vendor Advisories for CVE-2026-68157(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 31× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 19:41 UTCGHSA enrichment
  3. 2026-08-20 06:34 UTCGHSA enrichment
  4. 2026-08-19 17:26 UTCEG score recompute
  5. 2026-08-19 17:25 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 16:55 UTCEG score recompute
  8. 2026-08-19 16:55 UTCGHSA enrichment
  9. 2026-08-19 10:48 UTCGHSA enrichment
  10. 2026-08-18 21:40 UTCEG score recompute
  11. 2026-08-18 21:40 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 08:32 UTCGHSA enrichment
  14. 2026-08-17 19:21 UTCEG score recompute
  15. 2026-08-17 19:21 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 05:40 UTCEG score recompute
  18. 2026-08-17 05:40 UTCGHSA enrichment
  19. 2026-08-17 05:11 UTCEG score recompute
  20. 2026-08-17 05:11 UTCGHSA enrichment
  21. 2026-08-16 17:08 UTCEG score recompute
  22. 2026-08-16 17:08 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 04:00 UTCEG score recompute
  25. 2026-08-16 04:00 UTCGHSA enrichment
Show 18 more
  1. 2026-08-15 14:53 UTCGHSA enrichment
  2. 2026-08-15 01:45 UTCEG score recompute
  3. 2026-08-15 01:45 UTCGHSA enrichment
  4. 2026-08-15 01:30 UTCEPSS rescore
  5. 2026-08-14 12:38 UTCEG score recompute
  6. 2026-08-14 12:38 UTCGHSA enrichment
  7. 2026-08-13 23:30 UTCEG score recompute
  8. 2026-08-13 23:30 UTCGHSA enrichment
  9. 2026-08-13 22:45 UTCEG score recompute▲ 7.50
  10. 2026-08-13 22:45 UTCGHSA enrichment
  11. 2026-08-13 22:44 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  12. 2026-08-13 22:00 UTCEPSS rescore
  13. 2026-08-13 09:14 UTCEG score recompute
  14. 2026-08-13 09:14 UTCGHSA enrichment
  15. 2026-08-12 13:51 UTCEPSS rescore
  16. 2026-08-10 13:24 UTCNVD update
  17. 2026-08-10 12:21 UTCEG score recompute
  18. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68157?
CVE-2026-68157 is a high vulnerability published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: libceph: guard missing CRUSH type name lookup Localized read selection can walk a parent bucket whose name exists in the CRUSH map while its type has no matching entry in type_names. getimmediateparent() then dereferences a NULL…
When was CVE-2026-68157 disclosed?
CVE-2026-68157 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68157 actively exploited?
CVE-2026-68157 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.1% of all scored CVEs.
What is the CVSS score of CVE-2026-68157?
CVE-2026-68157 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-68157?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68157, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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