CVE-2026-13512

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-06-29. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

A vulnerability was identified in Databend up to 1.2.881 on HTTP. This affects the function ClientSessionManager::state_key of the file src/query/service/src/servers/http/v1/session/client_session_manager.rs of the component Tenant Handler. The manipulation leads to authorization bypass. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

June 28, 2026

Last Modified

June 30, 2026

Advisory Details (2)

Auto-updated Jun 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

fix(query): scope HTTP session state by tenant

Fix merged in databendlabs/databend PR #19931 on 2026-06-28 — awaiting tagged release

https://github.com/databendlabs/databend/pull/19931
generic

bug: Databend HTTP Client Session State Key Collision · Issue #19930 · databendlabs/databend · GitHub

https://github.com/databendlabs/databend/issues/19930

Vendor Advisories for CVE-2026-13512(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 37× 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.

Showing the most recent 100 of 163 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 07:05 UTCEG score recompute
  3. 2026-09-18 07:05 UTCGHSA enrichment
  4. 2026-09-16 05:14 UTCEPSS rescore
  5. 2026-09-13 16:46 UTCEPSS rescore
  6. 2026-09-13 14:21 UTCGHSA enrichment
  7. 2026-09-12 15:18 UTCEG score recompute
  8. 2026-09-12 15:18 UTCGHSA enrichment
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-11 14:52 UTCEPSS rescore
  11. 2026-09-11 09:36 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-08 22:00 UTCEPSS rescore
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-06 14:48 UTCEG score recompute
  16. 2026-09-06 14:48 UTCGHSA enrichment
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-01 13:53 UTCEPSS rescore
  21. 2026-08-30 19:17 UTCEPSS rescore
  22. 2026-08-30 19:09 UTCEG score recompute
  23. 2026-08-30 19:09 UTCGHSA enrichment
  24. 2026-08-30 01:21 UTCEPSS rescore
  25. 2026-08-28 21:40 UTCEPSS rescore
Show 75 more
  1. 2026-08-27 22:50 UTCEG score recompute
  2. 2026-08-27 22:50 UTCGHSA enrichment
  3. 2026-08-27 14:24 UTCEPSS rescore
  4. 2026-08-25 13:48 UTCEPSS rescore
  5. 2026-08-24 12:43 UTCEG score recompute
  6. 2026-08-24 12:43 UTCGHSA enrichment
  7. 2026-08-23 08:31 UTCEG score recompute
  8. 2026-08-23 08:31 UTCGHSA enrichment
  9. 2026-08-23 00:19 UTCEPSS rescore
  10. 2026-08-22 09:13 UTCEG score recompute
  11. 2026-08-22 09:13 UTCGHSA enrichment
  12. 2026-08-21 23:48 UTCEPSS rescore
  13. 2026-08-21 04:57 UTCEG score recompute
  14. 2026-08-21 04:57 UTCGHSA enrichment
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-20 05:58 UTCEG score recompute
  17. 2026-08-20 05:58 UTCGHSA enrichment
  18. 2026-08-19 17:03 UTCEPSS rescore
  19. 2026-08-18 23:23 UTCEG score recompute
  20. 2026-08-18 23:23 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-17 06:11 UTCEG score recompute
  23. 2026-08-17 06:11 UTCGHSA enrichment
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 07:12 UTCEG score recompute
  26. 2026-08-16 07:12 UTCGHSA enrichment
  27. 2026-08-16 02:14 UTCEPSS rescore
  28. 2026-08-15 08:13 UTCEG score recompute
  29. 2026-08-15 08:13 UTCGHSA enrichment
  30. 2026-08-15 01:30 UTCEPSS rescore
  31. 2026-08-14 08:20 UTCEG score recompute
  32. 2026-08-14 08:20 UTCGHSA enrichment
  33. 2026-08-13 22:00 UTCEPSS rescore
  34. 2026-08-13 09:20 UTCEG score recompute
  35. 2026-08-13 09:20 UTCGHSA enrichment
  36. 2026-08-12 13:50 UTCEPSS rescore
  37. 2026-08-12 10:21 UTCEG score recompute
  38. 2026-08-12 10:21 UTCGHSA enrichment
  39. 2026-08-11 13:42 UTCEPSS rescore
  40. 2026-08-11 11:16 UTCEG score recompute
  41. 2026-08-11 11:16 UTCGHSA enrichment
  42. 2026-08-10 23:59 UTCEPSS rescore
  43. 2026-08-10 12:16 UTCEG score recompute
  44. 2026-08-10 12:16 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 13:17 UTCEG score recompute
  47. 2026-08-09 13:17 UTCGHSA enrichment
  48. 2026-08-08 16:37 UTCEPSS rescore
  49. 2026-08-08 14:18 UTCEG score recompute
  50. 2026-08-08 14:18 UTCGHSA enrichment
  51. 2026-08-07 15:18 UTCGHSA enrichment
  52. 2026-08-06 16:19 UTCEG score recompute
  53. 2026-08-06 16:19 UTCGHSA enrichment
  54. 2026-08-06 13:46 UTCEPSS rescore
  55. 2026-08-05 19:17 UTCEPSS rescore
  56. 2026-08-05 17:20 UTCGHSA enrichment
  57. 2026-08-04 18:20 UTCEG score recompute
  58. 2026-08-04 18:20 UTCGHSA enrichment
  59. 2026-08-04 15:09 UTCEPSS rescore
  60. 2026-08-04 10:38 UTCEPSS rescore
  61. 2026-08-03 19:18 UTCEG score recompute
  62. 2026-08-03 19:18 UTCGHSA enrichment
  63. 2026-08-03 10:35 UTCEPSS rescore
  64. 2026-08-02 20:19 UTCEG score recompute
  65. 2026-08-02 20:19 UTCGHSA enrichment
  66. 2026-08-02 02:26 UTCEPSS rescore
  67. 2026-08-01 21:20 UTCEG score recompute
  68. 2026-08-01 21:19 UTCGHSA enrichment
  69. 2026-08-01 04:15 UTCEPSS rescore
  70. 2026-07-31 22:20 UTCGHSA enrichment
  71. 2026-07-30 23:08 UTCEG score recompute
  72. 2026-07-30 23:08 UTCGHSA enrichment
  73. 2026-07-30 16:27 UTCEPSS rescore
  74. 2026-07-30 01:30 UTCEPSS rescore
  75. 2026-07-30 00:08 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-13512?
CVE-2026-13512 is a medium vulnerability published on June 28, 2026. A vulnerability was identified in Databend up to 1.2.881 on HTTP. This affects the function ClientSessionManager::statekey of the file src/query/service/src/servers/http/v1/session/clientsession_manager.rs of the component Tenant Handler. The manipulation leads to authorization bypass. It is…
When was CVE-2026-13512 disclosed?
CVE-2026-13512 was first published in the National Vulnerability Database on June 28, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13512 actively exploited?
CVE-2026-13512 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.7% of all scored CVEs.
What is the CVSS score of CVE-2026-13512?
CVE-2026-13512 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-13512?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13512, 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.

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