VulnSocial

CVE-2026-6736General(github / enterprise_server)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication was enabled, the signup endpoint did not properly enforce the authentication restriction, allowing account creation and session establishment without identity provider validation. The created account was limited to the default base permissions configured on the instance. Exploitation required network access to a GHES instance configured with an external authentication provider. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18.

github CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_server

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-05-08); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
github
Products
enterprise_server

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-05-08: 1Mentions · 2026-05-10: 1Technical Details · 2026-05-08: 1Technical Details · 2026-05-10: 105-0805-10
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-081
General1
2026-05-101
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-6736 An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the… https://www.cve.org/CVERecord?id=CVE-2026-6736

    Post summary

    The post announces a newly identified authentication bypass vulnerability in GitHub Enterprise Server, allowing unauthenticated creation of local user accounts, but provides no PoC, exploit code, or patch information.

    00040229
    57.8K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-6736 Authentication Bypass in GitHub Enterprise Server Versions Below 3... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-6736 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    The tweet merely announces CVE-2026‑6736, noting an authentication bypass in GitHub Enterprise Server, but offers no proof‑of‑concept, exploit code, active usage evidence, or patch information.

    0000065
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appgithubenterprise_server---

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