CVE-2026-53561

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrary Hive user and obtain an authenticated HiveServer2 session via a forged Authorization: Bearer token sent to the /cliservice HTTP endpoint. Users are recommended to upgrade to 4.2.1 version that includes the fix for this issue.

Access / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue.

CVSS v3
7.4
EG Score
7.4(high)
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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (4)

Auto-updated Aug 26, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic
https://lists.apache.org/thread/6d56mk501fp4f8cb5wvrpj2jwd9knt05
github_commit

commit 6ca06ca1104f (apache/hive)

Fix landed in apache/hive commit 6ca06ca1104f — awaiting tagged release

https://github.com/apache/hive/commit/6ca06ca1104ff7462363087a867d70d546134774
generic

[HIVE-29653] Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token validation allows impersonation of any Hive user. - ASF Jira

https://issues.apache.org/jira/browse/HIVE-29653
generic

GitHub - apache/hive: Apache Hive · GitHub

https://github.com/apache/hive

Vendor Advisories for CVE-2026-53561(1)

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

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 91× 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. 2026-09-19 12:56 UTCGHSA enrichment
  2. 2026-09-18 23:50 UTCEG score recompute
  3. 2026-09-18 23:50 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 10:45 UTCGHSA enrichment
  6. 2026-09-17 21:40 UTCEG score recompute
  7. 2026-09-17 21:39 UTCGHSA enrichment
  8. 2026-09-17 08:33 UTCGHSA enrichment
  9. 2026-09-16 19:27 UTCEG score recompute
  10. 2026-09-16 19:27 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 03:29 UTCGHSA enrichment
  14. 2026-09-15 14:24 UTCEG score recompute
  15. 2026-09-15 14:24 UTCGHSA enrichment
  16. 2026-09-15 01:18 UTCGHSA enrichment
  17. 2026-09-14 12:13 UTCGHSA enrichment
  18. 2026-09-13 23:06 UTCEG score recompute
  19. 2026-09-13 23:06 UTCGHSA enrichment
  20. 2026-09-13 16:47 UTCEPSS rescore
  21. 2026-09-13 10:01 UTCGHSA enrichment
  22. 2026-09-12 20:56 UTCEG score recompute
  23. 2026-09-12 20:56 UTCGHSA enrichment
  24. 2026-09-12 07:50 UTCGHSA enrichment
  25. 2026-09-11 18:45 UTCEG score recompute
Show 66 more
  1. 2026-09-11 18:45 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 05:39 UTCGHSA enrichment
  4. 2026-09-10 16:32 UTCEG score recompute
  5. 2026-09-10 16:32 UTCGHSA enrichment
  6. 2026-09-10 09:35 UTCEPSS rescore
  7. 2026-09-10 03:27 UTCGHSA enrichment
  8. 2026-09-09 14:22 UTCGHSA enrichment
  9. 2026-09-09 01:17 UTCEG score recompute
  10. 2026-09-09 01:17 UTCGHSA enrichment
  11. 2026-09-08 22:01 UTCEPSS rescore
  12. 2026-09-07 20:11 UTCEG score recompute
  13. 2026-09-07 20:11 UTCGHSA enrichment
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-07 07:06 UTCGHSA enrichment
  16. 2026-09-06 18:00 UTCEG score recompute
  17. 2026-09-06 18:00 UTCGHSA enrichment
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-06 04:54 UTCGHSA enrichment
  20. 2026-09-05 15:49 UTCEG score recompute
  21. 2026-09-05 15:49 UTCGHSA enrichment
  22. 2026-09-05 02:44 UTCEG score recompute
  23. 2026-09-05 02:44 UTCGHSA enrichment
  24. 2026-09-04 13:39 UTCEG score recompute
  25. 2026-09-04 13:39 UTCGHSA enrichment
  26. 2026-09-04 05:06 UTCEPSS rescore
  27. 2026-09-04 00:33 UTCGHSA enrichment
  28. 2026-09-03 11:24 UTCGHSA enrichment
  29. 2026-09-02 22:17 UTCEG score recompute
  30. 2026-09-02 22:17 UTCGHSA enrichment
  31. 2026-09-02 14:12 UTCEPSS rescore
  32. 2026-09-02 09:09 UTCGHSA enrichment
  33. 2026-09-01 20:03 UTCEG score recompute
  34. 2026-09-01 20:03 UTCGHSA enrichment
  35. 2026-09-01 13:54 UTCEPSS rescore
  36. 2026-09-01 06:56 UTCEG score recompute
  37. 2026-09-01 06:56 UTCGHSA enrichment
  38. 2026-09-01 04:40 UTCEPSS rescore
  39. 2026-08-31 17:51 UTCGHSA enrichment
  40. 2026-08-31 04:42 UTCEG score recompute
  41. 2026-08-31 04:42 UTCGHSA enrichment
  42. 2026-08-30 19:17 UTCEPSS rescore
  43. 2026-08-30 15:37 UTCGHSA enrichment
  44. 2026-08-30 02:31 UTCEG score recompute
  45. 2026-08-30 02:31 UTCGHSA enrichment
  46. 2026-08-30 01:22 UTCEPSS rescore
  47. 2026-08-29 13:25 UTCGHSA enrichment
  48. 2026-08-29 00:17 UTCEG score recompute
  49. 2026-08-29 00:17 UTCGHSA enrichment
  50. 2026-08-28 21:41 UTCEPSS rescore
  51. 2026-08-28 08:03 UTCGHSA enrichment
  52. 2026-08-27 18:54 UTCEG score recompute
  53. 2026-08-27 18:54 UTCGHSA enrichment
  54. 2026-08-27 14:25 UTCEPSS rescore
  55. 2026-08-27 09:47 UTCEG score recompute
  56. 2026-08-27 09:47 UTCGHSA enrichment
  57. 2026-08-26 20:41 UTCGHSA enrichment
  58. 2026-08-26 19:27 UTCEG score recompute▲ 7.40
  59. 2026-08-26 19:27 UTCGHSA enrichment
  60. 2026-08-26 19:26 UTCMITRE cvelistV5CVSS v3 → 7.4 · severity → HIGH
  61. 2026-08-26 16:59 UTCEG score recompute
  62. 2026-08-26 16:59 UTCGHSA enrichment
  63. 2026-08-26 14:46 UTCEPSS rescore
  64. 2026-08-25 11:23 UTCNVD update
  65. 2026-08-25 10:22 UTCEG score recompute
  66. 2026-08-25 10:21 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53561?
CVE-2026-53561 is a high vulnerability published on August 25, 2026. An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an…
When was CVE-2026-53561 disclosed?
CVE-2026-53561 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53561 actively exploited?
CVE-2026-53561 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 80.5% of all scored CVEs.
What is the CVSS score of CVE-2026-53561?
CVE-2026-53561 has a CVSS v3.1 base score of 7.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-53561?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53561, 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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