CVE-2026-75101

MEDIUMNVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 6.5 from GitHub Security Advisory published 2026-09-22. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-84874 (ENISA EUVD) · GHSA-843p-hf47-6r9f (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed any authenticated user of the instance to read the raw diff or patch of pull requests in private repositories without authorization. Access tokens for raw pull request diffs and patches were scoped to the repository name and pull request number rather than to a globally unique repository identifier, so an attacker who created a repository and pull request matching a target's repository name and pull request number could use a token for their own repository to retrieve the private pull request's contents. Exploitation required the attacker to know the target repository's name and a valid pull request number. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.21, 3.18.15, 3.19.12, 3.20.8, and 3.21.6. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 22, 2026

Last Modified

October 2, 2026

Advisory Details (5)

Auto-updated Sep 22, 2026
Fix named in the CVE record.
Web page

Release notes - GitHub Enterprise Server 3.21 Docs

https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.6
Web page

Release notes - GitHub Enterprise Server 3.20 Docs

https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.8
Web page

Release notes - GitHub Enterprise Server 3.19 Docs

https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.12
Web page

Release notes - GitHub Enterprise Server 3.18 Docs

https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.15
Web page

Release notes - GitHub Enterprise Server 3.17 Docs

https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.21

Vendor Advisories for CVE-2026-75101(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 7× in last 7d / 55× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-25 14:03 UTCEG score recompute
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  12. 2026-10-22 21:34 UTCEG score recompute
  13. 2026-10-22 21:34 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  14. 2026-10-22 18:57 UTCEG score recompute
  15. 2026-10-22 18:57 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  16. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-18 03:13 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 65 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-12 15:39 UTCEG score recompute
  4. 2026-10-11 19:25 UTCEG score recompute
  5. 2026-10-11 16:40 UTCEG score recompute
  6. 2026-10-11 14:00 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-10-11 06:34 UTCEG score recompute
  9. 2026-10-11 06:33 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-10 05:06 UTCEG score recompute
  12. 2026-10-10 05:06 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-09 03:41 UTCEG score recompute
  15. 2026-10-09 03:41 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-08 02:17 UTCEG score recompute
  18. 2026-10-08 02:17 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-07 00:53 UTCEG score recompute
  21. 2026-10-07 00:53 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  22. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-05 23:07 UTCEG score recompute
  24. 2026-10-05 23:06 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  25. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  26. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  27. 2026-10-04 21:39 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  28. 2026-10-03 20:15 UTCEG score recompute
  29. 2026-10-03 20:15 UTCGHSA enrichmentGHSA-843p-hf47-6r9f · GitHub CVSS 6.5
  30. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  31. 2026-10-02 18:51 UTCEG score recompute▲ 0.50
  32. 2026-10-02 18:51 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  33. 2026-10-02 18:51 UTCNVD updateCVSS v3 → 6.5
  34. 2026-10-02 07:25 UTCEG score recompute
  35. 2026-10-02 07:25 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  36. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  37. 2026-10-01 06:01 UTCEG score recompute
  38. 2026-10-01 06:01 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  39. 2026-09-30 04:37 UTCEG score recompute
  40. 2026-09-30 04:37 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  41. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  42. 2026-09-29 03:07 UTCEG score recompute
  43. 2026-09-29 03:07 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  44. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  45. 2026-09-28 01:43 UTCEG score recompute
  46. 2026-09-28 01:42 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  47. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  48. 2026-09-27 00:14 UTCEG score recompute
  49. 2026-09-27 00:13 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  50. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  51. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  52. 2026-09-25 22:46 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  53. 2026-09-24 21:22 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  54. 2026-09-24 16:44 UTCEG score recompute
  55. 2026-09-24 16:44 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  56. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  57. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  58. 2026-09-23 15:20 UTCEG score recompute
  59. 2026-09-23 15:20 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  60. 2026-09-23 15:15 UTCEG score recompute
  61. 2026-09-23 15:15 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  62. 2026-09-22 21:33 UTCEG score recompute
  63. 2026-09-22 21:33 UTCGHSA enrichmentGHSA-843p-hf47-6r9f
  64. 2026-09-22 20:48 UTCEG score recomputeFirst assessed: 6.0 MEDIUM
  65. 2026-09-22 20:47 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-75101?
CVE-2026-75101 is a medium-severity vulnerability; its CVE record was published on September 22, 2026. An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed any authenticated user of the instance to read the raw diff or patch of pull requests in private repositories without authorization. Access tokens for raw pull request diffs and patches were scoped to the…
When was the CVE record for CVE-2026-75101 published?
The CVE record for CVE-2026-75101 was published on September 22, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 2, 2026; the record at its source may have been updated since.
Is CVE-2026-75101 actively exploited?
CVE-2026-75101 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75101?
CVE-2026-75101 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-75101?
The CVE record for CVE-2026-75101 names the fix: "This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.21, 3.18.15, 3.19.12, 3.20.8, and 3.21.6." The vendor advisories EchelonGraph has for CVE-2026-75101 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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