CVE-2026-83497

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-31. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 3, 2026

Advisory Details (3)

Auto-updated Aug 31, 2026
No patch confirmed yet.
generic

CVE-2026-83497 - OpenSearch SQL Plugin - Unrestricted Java Deserialization in Cursor Pagination

https://aws.amazon.com/security/security-bulletins/2026-092-aws/
generic

Artifacts By Version - OpenSearch

https://opensearch.org/artifacts/by-version/#release-2-19-6
generic

Artifacts By Version - OpenSearch

https://opensearch.org/artifacts/by-version/#release-3-7-0

Vendor Advisories for CVE-2026-83497(2)

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 27× in last 7d / 74× 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. 2026-09-18 21:26 UTCEG score recompute
  2. 2026-09-18 21:26 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 08:33 UTCGHSA enrichment
  5. 2026-09-17 20:51 UTCEG score recompute
  6. 2026-09-17 20:51 UTCGHSA enrichment
  7. 2026-09-17 19:32 UTCEPSS rescore
  8. 2026-09-17 09:10 UTCGHSA enrichment
  9. 2026-09-16 21:29 UTCEG score recompute
  10. 2026-09-16 21:29 UTCGHSA enrichment
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 09:08 UTCEG score recompute
  13. 2026-09-16 09:08 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 21:08 UTCGHSA enrichment
  16. 2026-09-15 09:26 UTCEG score recompute
  17. 2026-09-15 09:26 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 21:45 UTCGHSA enrichment
  21. 2026-09-14 10:03 UTCGHSA enrichment
  22. 2026-09-13 22:15 UTCEG score recompute
  23. 2026-09-13 22:15 UTCGHSA enrichment
  24. 2026-09-13 10:34 UTCGHSA enrichment
  25. 2026-09-12 22:50 UTCEG score recompute
Show 49 more
  1. 2026-09-12 22:50 UTCGHSA enrichment
  2. 2026-09-12 11:09 UTCGHSA enrichment
  3. 2026-09-11 23:28 UTCEG score recompute
  4. 2026-09-11 23:28 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 11:46 UTCEG score recompute
  8. 2026-09-11 11:46 UTCGHSA enrichment
  9. 2026-09-10 23:55 UTCGHSA enrichment
  10. 2026-09-10 11:40 UTCEG score recompute
  11. 2026-09-10 11:39 UTCGHSA enrichment
  12. 2026-09-09 23:43 UTCGHSA enrichment
  13. 2026-09-09 11:11 UTCGHSA enrichment
  14. 2026-09-08 23:29 UTCEG score recompute
  15. 2026-09-08 23:29 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-08 02:39 UTCEG score recompute
  18. 2026-09-08 02:38 UTCGHSA enrichment
  19. 2026-09-07 14:57 UTCGHSA enrichment
  20. 2026-09-07 03:03 UTCGHSA enrichment
  21. 2026-09-06 15:22 UTCEG score recompute
  22. 2026-09-06 15:22 UTCGHSA enrichment
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-06 03:40 UTCGHSA enrichment
  25. 2026-09-05 15:59 UTCEG score recompute
  26. 2026-09-05 15:59 UTCGHSA enrichment
  27. 2026-09-05 15:31 UTCEPSS rescore
  28. 2026-09-05 04:14 UTCGHSA enrichment
  29. 2026-09-04 16:32 UTCEG score recompute
  30. 2026-09-04 16:32 UTCGHSA enrichment
  31. 2026-09-04 05:07 UTCEPSS rescore
  32. 2026-09-04 04:43 UTCGHSA enrichment
  33. 2026-09-03 16:56 UTCGHSA enrichment
  34. 2026-09-03 14:37 UTCGHSA enrichment
  35. 2026-09-03 02:52 UTCGHSA enrichment
  36. 2026-09-02 15:09 UTCEG score recompute
  37. 2026-09-02 15:09 UTCGHSA enrichment
  38. 2026-09-02 14:12 UTCEPSS rescore
  39. 2026-09-02 03:26 UTCGHSA enrichment
  40. 2026-09-01 15:43 UTCEG score recompute
  41. 2026-09-01 15:43 UTCGHSA enrichment
  42. 2026-09-01 14:29 UTCEG score recompute
  43. 2026-09-01 14:29 UTCGHSA enrichment
  44. 2026-09-01 13:54 UTCEPSS rescore
  45. 2026-09-01 07:10 UTCEG score recompute
  46. 2026-09-01 07:10 UTCGHSA enrichment
  47. 2026-08-31 19:28 UTCEG score recompute
  48. 2026-08-31 18:47 UTCEG score recompute
  49. 2026-08-31 18:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-83497?
CVE-2026-83497 is a high vulnerability published on August 31, 2026. Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.
When was CVE-2026-83497 disclosed?
CVE-2026-83497 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-83497 actively exploited?
CVE-2026-83497 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 56.8% of all scored CVEs.
What is the CVSS score of CVE-2026-83497?
CVE-2026-83497 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-83497?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-83497, 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

Explore the affected products and dependency analysis for CVE-2026-83497

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