Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions…
Summary
OS command injection reported (CVE-2026-44590). Data can be tampered with by attackers. Mitigation: upgrade to 0.16.1 or later.
Original description
The description as published by the source.
Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-44590 has been found.
Data can be tampered with by attackers. CVSS score: 9.3/10.
What to do: upgrade the affected software to 0.16.1 or later.
If unsure, ask your IT team or search "CVE-2026-44590" on the vendor's site.
CVE-2026-44590 — CWE-78 / CVSS v3 9.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 0.16.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
OS command injection (CWE-78) has been reported.
Check the vendor advisory for the affected versions.
Severity: Critical (CVSS 9.3/10). Data can be tampered with by attackers.
Update to 0.16.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで影響コンポーネントを特定する。
-
2Apply patch patch
Upgrade to 0.16.1ステージング環境で 0.16.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2026-44590 sherlock
References
- web github.com