CVE-2023-6803

mediumpriority · track · 16EPSS 0.002 · 6 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.17% (6th) EPSS

CVSS 4 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · cert_bund

EPSS · scored 2026-10-27

A race condition in GitHub Enterprise Server allows an outside collaborator to be added while a repository is being transferred. This vulnerability affected all versions of GitHub Enterprise Server since 3.8 and was fixed in version 3.8.12, 3.9.7, 3.10.4, and 3.11.1.

cvss

Technical severity, 0–10. One row per scoring source.

5.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–5.8

v3.14mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 0.3 · impact 3.6

v3.15.8mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Lsecondary · ENISA EU

v3.15.8mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Lsecondary · product-cna@github.comexploitability 0.3 · impact 5.5

v3.13.7lowCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-367USprimary

affected products (9)

Products and version ranges known to be affected.

GitHub Enterprise Server≤ 3.9 ≤3.9.6enisa_euvdEU
GitHub Enterprise Server≤ 3.10 ≤3.10.3enisa_euvdEU
GitHub Enterprise Server≤ 3.8 ≤3.8.11enisa_euvdEU
GitHub Enterprise Serverall versionsenisa_euvdEU
GitHub Enterprise Server≤ 3.11 ≤3.11.0enisa_euvdEU
github enterprise server3.10.0 → 3.10.4nvdUScpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
github enterprise server= 3.11.0nvdUScpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
github enterprise server3.8.0 → 3.8.12nvdUScpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
github enterprise server3.9.0 → 3.9.7nvdUScpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-3210Microsoft GitHub Enterprise: Mehrere SchwachstellenDeutsch2023-12-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Microsoft GitHub Enterprise ausnutzen, um seine Rechte zu erweitern, Informationen preiszugeben, Daten zu manipulieren und Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd cert_bund NVD CVE.org MITRE

published 2023-12-21modified 2026-06-17

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+1056 more

references (13)

External citations — patches, advisories, analysis.

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