CVE-2026-27780

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
Patch available. Sources: github_pr, github_release.
github_release Patch Available

v1.26.0

Patch available: go-gitea/gitea v1.26.0

https://github.com/go-gitea/gitea/releases/tag/v1.26.0
github_pr

Catch scanner error when possible to avoid bypass

Fix merged in go-gitea/gitea PR #36963 on 2026-03-24 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/36963
generic

Gitea 1.26.0 is released | Gitea Blog

https://blog.gitea.com/release-of-1.26.0/

Vendor Advisories for CVE-2026-27780(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 38× in last 7d / 138× 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 138 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27780?
CVE-2026-27780 is a critical vulnerability published on July 3, 2026. Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.
When was CVE-2026-27780 disclosed?
CVE-2026-27780 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27780 actively exploited?
CVE-2026-27780 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 61.8% of all scored CVEs.
What is the CVSS score of CVE-2026-27780?
CVE-2026-27780 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-27780?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27780, 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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