CVE-2026-63040

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

Files or Directories Accessible to External Parties vulnerability in Apache InLong. StreamSource performs no authorization check, any authenticated user can logically delete ALL stream sources.

This issue affects Apache InLong: from 2.0.0 before 2.4.0.

Users are advised to upgrade to Apache InLong's 2.4.0 or cherry-pick [1] to solve it.

[1]  https://github.com/apache/inlong/pull/12145 .

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-63040: Apache InLong: Missing authorization in StreamSource forceDelete

http://www.openwall.com/lists/oss-security/2026/08/20/14
generic
https://lists.apache.org/thread/sbqrk88cjv3r9rnqfqgn31ox4711offy

Vendor Advisories for CVE-2026-63040(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 24× in last 7d / 104× 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 109 total refreshes for this CVE.

  1. 2026-09-19 11:46 UTCGHSA enrichment
  2. 2026-09-18 23:55 UTCEG score recompute
  3. 2026-09-18 23:55 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 12:04 UTCGHSA enrichment
  6. 2026-09-18 00:12 UTCEG score recompute
  7. 2026-09-18 00:12 UTCGHSA enrichment
  8. 2026-09-17 12:21 UTCGHSA enrichment
  9. 2026-09-17 00:31 UTCEG score recompute
  10. 2026-09-17 00:31 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 12:40 UTCEG score recompute
  13. 2026-09-16 12:40 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-16 00:50 UTCGHSA enrichment
  16. 2026-09-15 12:44 UTCEG score recompute
  17. 2026-09-15 12:44 UTCGHSA enrichment
  18. 2026-09-15 00:40 UTCGHSA enrichment
  19. 2026-09-14 12:49 UTCGHSA enrichment
  20. 2026-09-14 00:59 UTCEG score recompute
  21. 2026-09-14 00:59 UTCGHSA enrichment
  22. 2026-09-13 13:09 UTCGHSA enrichment
  23. 2026-09-13 01:19 UTCEG score recompute
  24. 2026-09-13 01:19 UTCGHSA enrichment
  25. 2026-09-12 13:29 UTCGHSA enrichment
Show 75 more
  1. 2026-09-12 01:39 UTCEG score recompute
  2. 2026-09-12 01:39 UTCGHSA enrichment
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 13:48 UTCEG score recompute
  5. 2026-09-11 13:48 UTCGHSA enrichment
  6. 2026-09-11 09:37 UTCEPSS rescore
  7. 2026-09-11 01:58 UTCGHSA enrichment
  8. 2026-09-10 14:08 UTCEG score recompute
  9. 2026-09-10 14:08 UTCGHSA enrichment
  10. 2026-09-10 02:17 UTCGHSA enrichment
  11. 2026-09-09 14:25 UTCGHSA enrichment
  12. 2026-09-09 01:59 UTCEG score recompute
  13. 2026-09-09 01:59 UTCGHSA enrichment
  14. 2026-09-08 22:01 UTCEPSS rescore
  15. 2026-09-07 23:14 UTCEG score recompute
  16. 2026-09-07 23:14 UTCGHSA enrichment
  17. 2026-09-07 16:01 UTCEPSS rescore
  18. 2026-09-07 11:23 UTCGHSA enrichment
  19. 2026-09-06 23:26 UTCEG score recompute
  20. 2026-09-06 23:26 UTCGHSA enrichment
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-06 11:35 UTCGHSA enrichment
  23. 2026-09-05 23:45 UTCEG score recompute
  24. 2026-09-05 23:45 UTCGHSA enrichment
  25. 2026-09-05 15:31 UTCEPSS rescore
  26. 2026-09-05 11:54 UTCGHSA enrichment
  27. 2026-09-05 00:03 UTCEG score recompute
  28. 2026-09-05 00:03 UTCGHSA enrichment
  29. 2026-09-04 12:13 UTCEG score recompute
  30. 2026-09-04 12:13 UTCGHSA enrichment
  31. 2026-09-04 05:07 UTCEPSS rescore
  32. 2026-09-04 00:22 UTCGHSA enrichment
  33. 2026-09-03 12:30 UTCGHSA enrichment
  34. 2026-09-03 00:31 UTCEG score recompute
  35. 2026-09-03 00:31 UTCGHSA enrichment
  36. 2026-09-02 14:12 UTCEPSS rescore
  37. 2026-09-02 12:40 UTCGHSA enrichment
  38. 2026-09-02 00:46 UTCEG score recompute
  39. 2026-09-02 00:46 UTCGHSA enrichment
  40. 2026-09-01 13:54 UTCEPSS rescore
  41. 2026-09-01 12:55 UTCEG score recompute
  42. 2026-09-01 12:55 UTCGHSA enrichment
  43. 2026-09-01 04:40 UTCEPSS rescore
  44. 2026-09-01 01:03 UTCGHSA enrichment
  45. 2026-08-31 13:11 UTCGHSA enrichment
  46. 2026-08-31 01:03 UTCEG score recompute
  47. 2026-08-31 01:03 UTCGHSA enrichment
  48. 2026-08-30 19:17 UTCEPSS rescore
  49. 2026-08-30 13:12 UTCEG score recompute
  50. 2026-08-30 13:12 UTCGHSA enrichment
  51. 2026-08-30 01:22 UTCEPSS rescore
  52. 2026-08-30 01:21 UTCGHSA enrichment
  53. 2026-08-29 13:31 UTCGHSA enrichment
  54. 2026-08-29 01:29 UTCEG score recompute
  55. 2026-08-29 01:29 UTCGHSA enrichment
  56. 2026-08-28 21:42 UTCEPSS rescore
  57. 2026-08-28 11:39 UTCGHSA enrichment
  58. 2026-08-27 23:48 UTCEG score recompute
  59. 2026-08-27 23:48 UTCGHSA enrichment
  60. 2026-08-27 14:25 UTCEPSS rescore
  61. 2026-08-27 11:58 UTCGHSA enrichment
  62. 2026-08-27 00:08 UTCGHSA enrichment
  63. 2026-08-26 17:53 UTCEG score recompute
  64. 2026-08-26 17:53 UTCGHSA enrichment
  65. 2026-08-26 14:46 UTCEPSS rescore
  66. 2026-08-26 04:53 UTCGHSA enrichment
  67. 2026-08-25 17:03 UTCEG score recompute
  68. 2026-08-25 17:03 UTCGHSA enrichment
  69. 2026-08-25 13:49 UTCEPSS rescore
  70. 2026-08-25 05:10 UTCEG score recompute
  71. 2026-08-25 05:10 UTCGHSA enrichment
  72. 2026-08-24 17:19 UTCGHSA enrichment
  73. 2026-08-24 17:07 UTCEG score recompute▲ 8.10
  74. 2026-08-24 17:07 UTCGHSA enrichment
  75. 2026-08-24 17:06 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-63040?
CVE-2026-63040 is a high vulnerability published on August 20, 2026. Files or Directories Accessible to External Parties vulnerability in Apache InLong. StreamSource performs no authorization check, any authenticated user can logically delete ALL stream sources. This issue affects Apache InLong: from 2.0.0 before 2.4.0. Users are advised to upgrade to Apache…
When was CVE-2026-63040 disclosed?
CVE-2026-63040 was first published in the National Vulnerability Database on August 20, 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-2026-63040 actively exploited?
CVE-2026-63040 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 57.4% of all scored CVEs.
What is the CVSS score of CVE-2026-63040?
CVE-2026-63040 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-63040?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63040, 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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