CVE-2026-27775

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.8 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.9% (59th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from CISA-ADP (Vulnrichment) CVSS v3.1
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS
Elevated

Also known asEUVD-2026-41636 (ENISA EUVD) · GHSA-649p-mmhf-85c7 (GitHub Security Advisories)Source: ENISA EUVD

8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.9%
EPSS %ILE
59th
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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.CISA-ADP (Vulnrichment) CVSS v3.1 · CVSS v3.1
EG Likelihood
0.9% within 30 daysSource: FIRST EPSS. 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 low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

July 3, 2026

Last Modified

October 25, 2026

Advisory Details (4)

Auto-updated Jul 6, 2026
Patch available. Sources: github, github_pr, github_release.
Web page

Gitea 1.26.3 and 1.26.4 are released | Gitea Blog

https://blog.gitea.com/release-of-1.26.3-and-1.26.4/
GitHub release Patch Available

v1.26.3

Patch available: go-gitea/gitea v1.26.3

https://github.com/go-gitea/gitea/releases/tag/v1.26.3
GitHub pull request

fix: Various security fixes (#38103)

Fix merged in go-gitea/gitea PR #38151 on 2026-06-17 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/38151
GitHub advisoryMentions a patch (unverified)

Cached Per-Branch Permission Check in Pre-Receive Hook Allows Full Repository Write · Advisory · go-gitea/gitea · GitHub

https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7

Vendor Advisories for CVE-2026-27775(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
code.gitea.io/gitea—
  • every version up to 1.26.3: fixed in 1.26.3
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 37× 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.

Showing the most recent 96 of 168 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 72 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-25 14:38 UTCEG score recompute
  5. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-24 06:34 UTCEG score recompute
  7. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  8. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-18 03:51 UTCEG score recompute
  14. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-17 16:24 UTCEG score recompute
  16. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-13 14:24 UTCOSV refresh
  21. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-12 16:17 UTCEG score recompute
  23. 2026-10-11 19:59 UTCEG score recompute
  24. 2026-10-11 17:13 UTCEG score recompute
  25. 2026-10-11 14:44 UTCEG score recompute
Show 71 more
  1. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-23 06:34 UTCEG score recompute
  16. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-09-18 06:11 UTCEG score recompute
  19. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-09-14 00:02 UTCEG score recompute
  23. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-09-13 08:55 UTCEG score recompute
  25. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-09-12 14:00 UTCEG score recompute
  27. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-09-06 14:17 UTCEG score recompute
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  33. 2026-09-05 23:40 UTCEG score recompute
  34. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  35. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  36. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  37. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-08-31 00:12 UTCEG score recompute
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  40. 2026-08-30 11:18 UTCEG score recompute
  41. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  42. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  43. 2026-08-27 22:11 UTCEG score recompute
  44. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  45. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  46. 2026-08-26 14:32 UTCEG score recompute
  47. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  48. 2026-08-25 00:10 UTCEG score recompute
  49. 2026-08-24 11:16 UTCEG score recompute
  50. 2026-08-23 09:28 UTCEG score recompute
  51. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  52. 2026-08-22 07:40 UTCEG score recompute
  53. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  54. 2026-08-21 05:47 UTCEG score recompute
  55. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  56. 2026-08-20 03:41 UTCEG score recompute
  57. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  58. 2026-08-19 00:56 UTCEG score recompute
  59. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  60. 2026-08-17 22:47 UTCEG score recompute
  61. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  62. 2026-08-16 18:25 UTCEG score recompute
  63. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  64. 2026-08-16 05:31 UTCEG score recompute
  65. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  66. 2026-08-15 03:44 UTCEG score recompute
  67. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  68. 2026-08-14 01:57 UTCEG score recompute
  69. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  70. 2026-08-13 00:09 UTCEG score recompute
  71. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.6% · 44th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-27775?
CVE-2026-27775 is a high-severity vulnerability; its CVE record was published on July 3, 2026. Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.
When was the CVE record for CVE-2026-27775 published?
The CVE record for CVE-2026-27775 was published on July 3, 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 25, 2026; the record at its source may have been updated since.
Is CVE-2026-27775 actively exploited?
CVE-2026-27775 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-27775?
CVE-2026-27775 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-27775?
A fix for CVE-2026-27775 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-27775 are linked in the Vendor Advisories panel on this page.

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