CVE-2026-51291

✕ Withdrawn — historical dataCRITICALPre-NVD 9.8
9.8CVSS
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

sqlite 3.41 is vulnerable to use after free in the json.c jsonCacheInsert function of the JSON cache management module.

CVSS v3
9.8
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EG Score
—
EG Risk
—
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

Published

July 30, 2026

Last Modified

July 30, 2026

Advisory Details (2)

Auto-updated Oct 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

sqlite/src/json.c at master · sqlite/sqlite · GitHub

https://github.com/sqlite/sqlite/blob/master/src/json.c
generic🟡 PoC Available

cveadvisory-/CVE-2026-51291 at main · programmervuln/cveadvisory- · GitHub

https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51291

Vendor Advisories for CVE-2026-51291(1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 3× in last 7d / 9× 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. 2026-10-04 12:34 UTCGHSA enrichment
  2. 2026-10-01 03:32 UTCEG score recompute
  3. 2026-10-01 03:32 UTCGHSA enrichment
  4. 2026-09-27 19:34 UTCGHSA enrichment
  5. 2026-09-22 15:44 UTCGHSA enrichment
  6. 2026-09-18 01:39 UTCGHSA enrichment
  7. 2026-09-14 10:42 UTCGHSA enrichment
  8. 2026-09-11 03:35 UTCGHSA enrichment
  9. 2026-09-07 20:36 UTCGHSA enrichment
  10. 2026-09-04 11:52 UTCGHSA enrichment
  11. 2026-08-30 08:13 UTCGHSA enrichment
  12. 2026-08-27 01:05 UTCGHSA enrichment
  13. 2026-08-23 18:04 UTCGHSA enrichment
  14. 2026-08-20 11:04 UTCGHSA enrichment
  15. 2026-08-17 04:05 UTCGHSA enrichment
  16. 2026-08-13 21:05 UTCGHSA enrichment
  17. 2026-08-10 14:04 UTCGHSA enrichment
  18. 2026-08-07 07:04 UTCGHSA enrichment
  19. 2026-08-04 00:05 UTCEG score recompute
  20. 2026-08-04 00:05 UTCGHSA enrichment
  21. 2026-08-01 04:16 UTCEPSS rescore
  22. 2026-07-31 17:05 UTCEG score recompute▼ 9.80
  23. 2026-07-31 17:05 UTCGHSA enrichment
  24. 2026-07-31 12:59 UTCGHSA enrichment
  25. 2026-07-31 08:52 UTCGHSA enrichment
Show 12 more
  1. 2026-07-31 04:45 UTCGHSA enrichment
  2. 2026-07-31 00:39 UTCEG score recompute
  3. 2026-07-31 00:39 UTCGHSA enrichment
  4. 2026-07-30 20:32 UTCEG score recompute▲ 9.80
  5. 2026-07-30 20:32 UTCGHSA enrichment
  6. 2026-07-30 20:32 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  7. 2026-07-30 19:34 UTCGHSA enrichment
  8. 2026-07-30 19:33 UTCNVD update
  9. 2026-07-30 19:31 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  10. 2026-07-30 17:23 UTCNVD update
  11. 2026-07-30 16:49 UTCEG score recompute
  12. 2026-07-30 16:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51291?
CVE-2026-51291 is a critical vulnerability published on July 30, 2026. sqlite 3.41 is vulnerable to use after free in the json.c jsonCacheInsert function of the JSON cache management module.
When was CVE-2026-51291 disclosed?
CVE-2026-51291 was first published on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51291 actively exploited?
CVE-2026-51291 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-51291?
CVE-2026-51291 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51291?
No fix for CVE-2026-51291 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-51291 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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