CVE-2026-8606Patch(github / enterprise_server)

LOWCVSS 5.9 · 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

A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to cause the server to issue HTTP requests to internal services via the security advisories package lookup feature. By directing requests to an internal management service and measuring response timing, an attacker could infer the values of sensitive environment variables, including signing secrets and private keys. Exploitation required GitHub Packages to be enabled; on instances not running in private mode the vulnerability was exploitable without authentication, otherwise any authenticated user could exploit it. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21.1 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, 3.17.16, and 3.16.19. This vulnerability was reported via the GitHub Bug Bounty program.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

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
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
enterprise_server

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-15: 1Patch / Workaround · 2026-06-15: 1Technical Details · 2026-06-15: 106-15
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • IntegSec@integ_sec
    Patch

    CVE-2026-8606: GitHub Enterprise Server SSRF Vulnerability - What It Means for Your Business and How to Respond https://hubs.li/Q04lnGxl0

    Post summary

    The article describes an SSRF flaw in GitHub Enterprise Server, its potential business impact, and offers mitigation advice—including patching—while making no claim of active exploitation or a proof of concept.

    0000030
    31 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appgithubenterprise_server---
Appgithubenterprise_server3.21.0--

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