CVE-2026-82282

HIGHPre-NVD 8.08.0—
EchelonGraph scoreHIGH confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.0Exploit: None knownExposed: 0

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

Atlantis through 0.47.1 fails to authenticate the /github-app/setup endpoint, allowing unauthenticated attackers to access GitHub App credentials. Attackers can observe or intercept the GitHub redirect during setup to obtain the RSA private key and webhook secret, enabling installation token minting and webhook payload forgery.

CVSS v3
8.0
EG Score
8.0(high)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 31, 2026

Advisory Details (5)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

Atlantis GitHub App Setup Endpoint Returns App Credentials to Unauthenticated Callers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/atlantis-github-app-setup-endpoint-returns-app-credentials-to-unauthenticated-callers
generic

atlantis/server/middleware.go at 12bfa59f44d8f65bfdda132bff61d8f8f29af1d6 · runatlantis/atlantis · GitHub

https://github.com/runatlantis/atlantis/blob/12bfa59f44d8f65bfdda132bff61d8f8f29af1d6/server/middleware.go
generic

atlantis/server/controllers/github_app_controller.go at 12bfa59f44d8f65bfdda132bff61d8f8f29af1d6 · runatlantis/atlantis · GitHub

https://github.com/runatlantis/atlantis/blob/12bfa59f44d8f65bfdda132bff61d8f8f29af1d6/server/controllers/github_app_controller.go
generic

GitHub - runatlantis/atlantis: Terraform Pull Request Automation · GitHub

https://github.com/runatlantis/atlantis
generic

GitHub App Credential Interception via Unauthenticated /github-app/exchange-code · Issue #6622 · runatlantis/atlantis · GitHub

https://github.com/runatlantis/atlantis/issues/6622

Vendor Advisories for CVE-2026-82282(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 27× in last 7d / 95× 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. 2026-09-20 23:54 UTCEG score recompute
  2. 2026-09-20 23:54 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 11:56 UTCGHSA enrichment
  5. 2026-09-19 23:51 UTCEG score recompute
  6. 2026-09-19 23:51 UTCGHSA enrichment
  7. 2026-09-19 11:54 UTCGHSA enrichment
  8. 2026-09-18 23:55 UTCEG score recompute
  9. 2026-09-18 23:55 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 11:58 UTCGHSA enrichment
  12. 2026-09-18 00:00 UTCEG score recompute
  13. 2026-09-18 00:00 UTCGHSA enrichment
  14. 2026-09-17 11:47 UTCGHSA enrichment
  15. 2026-09-16 23:50 UTCEG score recompute
  16. 2026-09-16 23:50 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 11:53 UTCEG score recompute
  19. 2026-09-16 11:53 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 23:56 UTCGHSA enrichment
  22. 2026-09-15 11:58 UTCEG score recompute
  23. 2026-09-15 11:58 UTCGHSA enrichment
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 70 more
  1. 2026-09-15 00:01 UTCGHSA enrichment
  2. 2026-09-14 12:03 UTCGHSA enrichment
  3. 2026-09-14 00:04 UTCEG score recompute
  4. 2026-09-14 00:04 UTCGHSA enrichment
  5. 2026-09-13 12:06 UTCGHSA enrichment
  6. 2026-09-13 00:09 UTCEG score recompute
  7. 2026-09-13 00:09 UTCGHSA enrichment
  8. 2026-09-12 12:11 UTCGHSA enrichment
  9. 2026-09-12 00:13 UTCEG score recompute
  10. 2026-09-12 00:13 UTCGHSA enrichment
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 12:15 UTCEG score recompute
  14. 2026-09-11 12:15 UTCGHSA enrichment
  15. 2026-09-11 00:17 UTCGHSA enrichment
  16. 2026-09-10 12:19 UTCEG score recompute
  17. 2026-09-10 12:19 UTCGHSA enrichment
  18. 2026-09-10 00:22 UTCGHSA enrichment
  19. 2026-09-09 12:24 UTCGHSA enrichment
  20. 2026-09-09 00:27 UTCEG score recompute
  21. 2026-09-09 00:27 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 08:22 UTCGHSA enrichment
  24. 2026-09-07 20:23 UTCEG score recompute
  25. 2026-09-07 20:23 UTCGHSA enrichment
  26. 2026-09-07 08:26 UTCGHSA enrichment
  27. 2026-09-06 20:22 UTCEG score recompute
  28. 2026-09-06 20:22 UTCGHSA enrichment
  29. 2026-09-06 13:48 UTCEPSS rescore
  30. 2026-09-06 08:24 UTCGHSA enrichment
  31. 2026-09-05 20:27 UTCEG score recompute
  32. 2026-09-05 20:27 UTCGHSA enrichment
  33. 2026-09-05 15:31 UTCEPSS rescore
  34. 2026-09-05 08:30 UTCGHSA enrichment
  35. 2026-09-04 20:33 UTCEG score recompute
  36. 2026-09-04 20:32 UTCGHSA enrichment
  37. 2026-09-04 08:20 UTCEG score recompute
  38. 2026-09-04 08:20 UTCGHSA enrichment
  39. 2026-09-04 05:07 UTCEPSS rescore
  40. 2026-09-03 20:23 UTCGHSA enrichment
  41. 2026-09-03 08:22 UTCGHSA enrichment
  42. 2026-09-02 20:24 UTCEG score recompute
  43. 2026-09-02 20:24 UTCGHSA enrichment
  44. 2026-09-02 14:12 UTCEPSS rescore
  45. 2026-09-02 07:35 UTCGHSA enrichment
  46. 2026-09-01 19:37 UTCEG score recompute
  47. 2026-09-01 19:37 UTCGHSA enrichment
  48. 2026-09-01 13:54 UTCEPSS rescore
  49. 2026-09-01 07:30 UTCEG score recompute
  50. 2026-09-01 07:30 UTCGHSA enrichment
  51. 2026-09-01 04:40 UTCEPSS rescore
  52. 2026-09-01 04:40 UTCEPSS rescore
  53. 2026-08-31 19:31 UTCEG score recompute
  54. 2026-08-31 19:31 UTCGHSA enrichment
  55. 2026-08-31 19:08 UTCEG score recompute
  56. 2026-08-31 19:08 UTCGHSA enrichment
  57. 2026-08-31 08:15 UTCGHSA enrichment
  58. 2026-08-30 20:16 UTCEG score recompute
  59. 2026-08-30 20:16 UTCGHSA enrichment
  60. 2026-08-30 19:18 UTCEPSS rescore
  61. 2026-08-30 19:17 UTCEPSS rescore
  62. 2026-08-30 08:19 UTCEG score recompute
  63. 2026-08-30 08:18 UTCGHSA enrichment
  64. 2026-08-30 01:22 UTCEPSS rescore
  65. 2026-08-29 20:21 UTCGHSA enrichment
  66. 2026-08-29 08:22 UTCEG score recompute
  67. 2026-08-29 08:22 UTCGHSA enrichment
  68. 2026-08-28 20:25 UTCEG score recompute
  69. 2026-08-28 19:39 UTCEG score recompute
  70. 2026-08-28 19:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82282?
CVE-2026-82282 is a high vulnerability published on August 28, 2026. Atlantis through 0.47.1 fails to authenticate the /github-app/setup endpoint, allowing unauthenticated attackers to access GitHub App credentials. Attackers can observe or intercept the GitHub redirect during setup to obtain the RSA private key and webhook secret, enabling installation token…
When was CVE-2026-82282 disclosed?
CVE-2026-82282 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82282 actively exploited?
CVE-2026-82282 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 81.9% of all scored CVEs.
What is the CVSS score of CVE-2026-82282?
CVE-2026-82282 has a CVSS v3 base score of 8.0 (NVD).
How do I remediate CVE-2026-82282?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82282, 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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