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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 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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5b5a0bde27993eaef933cc8a5a76ec09c9accaffe40e4a534d66ea8523bcf1c8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"Enterprise Server","vendor":"GitHub","versions":[{"changes":[{"at":"3.14.24","status":"unaffected"}],"lessThanOrEqual":"3.14.23","status":"affected","version":"3.14.0","versionType":"semver"},{"changes":[{"at":"3.15.19","status":"unaffected"}],"lessThanOrEqual":"3.15.18","status":"affected","version":"3.15.0","versionType":"semver"},{"changes":[{"at":"3.16.15","status":"unaffected"}],"lessThanOrEqual":"3.16.14","status":"affected","version":"3.16.0","versionType":"semver"},{"changes":[{"at":"3.17.12","status":"unaffected"}],"lessThanOrEqual":"3.17.11","st…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"url":"https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/0
{"url":"https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.19"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/1
{"url":"https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.15"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/2
{"url":"https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/3
{"url":"https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/4
{"url":"https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6cdf27b5d9051a0ca2c17c773d0f46ba9a58ee186a2b0b9263ba28f0bdc66e9 · sha256:adf636a5f51af21f… · /containers/cna/references/5

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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