CVE-2026-9132

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-30. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to read source code from private repositories they did not have access to. The Copilot pull request description diff summary endpoint accepted a cross-repository comparison range and rendered the resulting diff without verifying that the requesting user was authorized to view the target repository. Exploitation required an authenticated account on the instance with read access to at least one repository to use as the comparison base. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.17.17, 3.18.11, 3.19.8, and 3.20.4. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (4)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

Release notes - GitHub Enterprise Server 3.20 Docs

https://docs.github.com/en/[email protected]/admin/release-notes#3.20.4-features
generic

Release notes - GitHub Enterprise Server 3.19 Docs

https://docs.github.com/en/[email protected]/admin/release-notes#3.19.8-features
generic

Release notes - GitHub Enterprise Server 3.18 Docs

https://docs.github.com/en/[email protected]/admin/release-notes#3.18.11-features
generic

Release notes - GitHub Enterprise Server 3.17 Docs

https://docs.github.com/en/[email protected]/admin/release-notes#3.17.17-features

Vendor Advisories for CVE-2026-9132(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 8× in last 7d / 58× 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. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:38 UTCEPSS rescore
  3. 2026-09-10 09:35 UTCEPSS rescore
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-06 14:34 UTCEG score recompute
  6. 2026-09-06 14:34 UTCGHSA enrichment
  7. 2026-09-06 13:48 UTCEPSS rescore
  8. 2026-09-05 15:31 UTCEPSS rescore
  9. 2026-09-04 05:07 UTCEPSS rescore
  10. 2026-09-02 14:12 UTCEPSS rescore
  11. 2026-09-01 13:54 UTCEPSS rescore
  12. 2026-09-01 04:40 UTCEPSS rescore
  13. 2026-08-30 19:18 UTCEPSS rescore
  14. 2026-08-30 17:56 UTCEG score recompute
  15. 2026-08-30 17:56 UTCGHSA enrichment
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:42 UTCEPSS rescore
  18. 2026-08-27 22:39 UTCEG score recompute
  19. 2026-08-27 22:39 UTCGHSA enrichment
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:47 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 02:14 UTCEG score recompute
  24. 2026-08-25 02:14 UTCGHSA enrichment
  25. 2026-08-24 14:18 UTCEPSS rescore
Show 75 more
  1. 2026-08-24 04:30 UTCGHSA enrichment
  2. 2026-08-23 06:46 UTCEG score recompute
  3. 2026-08-23 06:46 UTCGHSA enrichment
  4. 2026-08-23 00:19 UTCEPSS rescore
  5. 2026-08-22 08:09 UTCEG score recompute
  6. 2026-08-22 08:09 UTCGHSA enrichment
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 04:46 UTCEG score recompute
  9. 2026-08-21 04:46 UTCGHSA enrichment
  10. 2026-08-20 22:56 UTCEPSS rescore
  11. 2026-08-20 05:25 UTCEG score recompute
  12. 2026-08-20 05:25 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-18 22:59 UTCEG score recompute
  15. 2026-08-18 22:59 UTCGHSA enrichment
  16. 2026-08-18 13:49 UTCEPSS rescore
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 11:49 UTCEG score recompute
  19. 2026-08-17 11:49 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 13:57 UTCEG score recompute
  23. 2026-08-16 13:57 UTCGHSA enrichment
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 16:13 UTCEG score recompute
  26. 2026-08-15 16:13 UTCGHSA enrichment
  27. 2026-08-15 01:31 UTCEPSS rescore
  28. 2026-08-14 18:28 UTCEG score recompute
  29. 2026-08-14 18:28 UTCGHSA enrichment
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 20:43 UTCGHSA enrichment
  32. 2026-08-12 22:59 UTCEG score recompute
  33. 2026-08-12 22:59 UTCGHSA enrichment
  34. 2026-08-12 13:51 UTCEPSS rescore
  35. 2026-08-12 01:15 UTCEG score recompute
  36. 2026-08-12 01:15 UTCGHSA enrichment
  37. 2026-08-11 13:43 UTCEPSS rescore
  38. 2026-08-11 03:31 UTCEG score recompute
  39. 2026-08-11 03:31 UTCGHSA enrichment
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 05:47 UTCEG score recompute
  42. 2026-08-10 05:47 UTCGHSA enrichment
  43. 2026-08-09 13:47 UTCEPSS rescore
  44. 2026-08-09 08:03 UTCEG score recompute
  45. 2026-08-09 08:03 UTCGHSA enrichment
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-08 10:19 UTCEG score recompute
  48. 2026-08-08 10:19 UTCGHSA enrichment
  49. 2026-08-07 16:30 UTCEPSS rescore
  50. 2026-08-07 12:35 UTCGHSA enrichment
  51. 2026-08-06 14:51 UTCEG score recompute
  52. 2026-08-06 14:51 UTCGHSA enrichment
  53. 2026-08-06 13:47 UTCEPSS rescore
  54. 2026-08-05 19:17 UTCEPSS rescore
  55. 2026-08-05 19:17 UTCEPSS rescore
  56. 2026-08-05 17:04 UTCGHSA enrichment
  57. 2026-08-04 19:19 UTCEG score recompute
  58. 2026-08-04 19:19 UTCGHSA enrichment
  59. 2026-08-04 15:10 UTCEPSS rescore
  60. 2026-08-04 10:39 UTCEPSS rescore
  61. 2026-08-03 21:35 UTCEG score recompute
  62. 2026-08-03 21:35 UTCGHSA enrichment
  63. 2026-08-03 10:36 UTCEPSS rescore
  64. 2026-08-02 23:51 UTCEG score recompute
  65. 2026-08-02 23:51 UTCGHSA enrichment
  66. 2026-08-02 02:27 UTCEPSS rescore
  67. 2026-08-02 02:06 UTCGHSA enrichment
  68. 2026-08-01 04:22 UTCEG score recompute
  69. 2026-08-01 04:22 UTCGHSA enrichment
  70. 2026-08-01 04:16 UTCEPSS rescore
  71. 2026-07-31 06:35 UTCEG score recompute
  72. 2026-07-31 06:35 UTCGHSA enrichment
  73. 2026-07-30 16:28 UTCEPSS rescore
  74. 2026-07-30 08:44 UTCEG score recompute
  75. 2026-07-30 08:43 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9132?
CVE-2026-9132 is a medium vulnerability published on June 30, 2026. A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to read source code from private repositories they did not have access to. The Copilot pull request description diff summary endpoint accepted a cross-repository comparison range and…
When was CVE-2026-9132 disclosed?
CVE-2026-9132 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9132 actively exploited?
CVE-2026-9132 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 65.1% of all scored CVEs.
What is the CVSS score of CVE-2026-9132?
CVE-2026-9132 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-9132?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9132, 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

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