VulnSocial

CVE-2026-3306Disclosure(github / enterprise_server)

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch github enterprise_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a project that already existed, column value updates were applied without verifying the actor's repository write permissions. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-639

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

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

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 2 mentions (2026-03-15); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
github
Products
enterprise_server

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-03-15: 2Mentions · 2026-03-25: 1Patch / Workaround · 2026-03-25: 1Technical Details · 2026-03-15: 2Technical Details · 2026-03-25: 103-1503-25
Signal classification2 categories
Disclosure
266.7%
Patch
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-03-152
Disclosure2
2026-03-251
Patch1
Full discourse3 posts
  • White Rabbitx@TheRabbitPy
    Patch

    ‼️ CVE-2026-3306 (CVSS 4.3) GitHub Enterprise Server improper auth—repo read + project write = PR metadata mods. Bug bounty find, patched 3.19.3+. https://app.opencve.io/cve/?vendor=github

    Post summary

    CVE‑2026‑3306 is an improper authorization issue in GitHub Enterprise Server with a CVSS 4.3 score, now patched in version 3.19.3+, with no evidence of active exploitation or PoC.

    0001068
    434 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-3306 An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to… https://www.cve.org/CVERecord?id=CVE-2026-3306 ----- Traducción: CVE-2026-3306 Se … http://infoflow.cloud`

    Post summary

    The post announces a discovered improper‑authorization flaw in GitHub Enterprise Server that lets a user with read repo and write project permissions gain additional access; no exploitation, PoC, or mitigation details are provided.

    0000047
    57 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3306 An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to… https://www.cve.org/CVERecord?id=CVE-2026-3306

    Post summary

    The passage announces CVE‑2026‑3306, an improper authorization flaw in GitHub Enterprise Server, but offers no PoC, exploit code, active exploitation data, or patch information.

    00000509
    56.7K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appgithubenterprise_server---

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