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MEDIUM severity

GHSA-rj44-gpjc-29r7

MEDIUMFix: thi-ng/umbrella@88f6165

GHSA-rj44-gpjc-29r7 is a medium-severity (CVSS 6.4) OS Command Injection vulnerability in @thi.ng/egf. O3 Security confirms whether GHSA-rj44-gpjc-29r7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

[thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values

Also known asCVE-2021-21412
Published
Apr 6, 2021
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
@thi.ng/egfnpm
163downloads / week

Description

Impact

Potential for arbitrary code execution in #gpg-tagged property values (only if decrypt: true option is enabled)

Patches

A fix has already been released as v0.4.0

Workarounds

By default, EGF parse functions do NOT attempt to decrypt values (since GPG is only available in non-browser env).

However, if GPG encrypted values are used/required:

  1. Perform a regex search for #gpg-tagged values in the EGF source file/string and check for backtick (`) chars in the encrypted value string
  2. Replace/remove them or skip parsing if present...

References

https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7#advisory-comment-65261

For more information

If you have any questions or comments about this advisory, please open an issue in the thi.ng/umbrella repo, of which this package is part of.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npm@thi.ng/egfall versions0.4.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @thi.ng/egf. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update @thi.ng/egf to 0.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rj44-gpjc-29r7 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-rj44-gpjc-29r7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-rj44-gpjc-29r7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact Potential for arbitrary code execution in `#gpg`-tagged property values (only if `decrypt: true` option is enabled) ### Patches [A fix](https://github.com/thi-ng/umbrella/commit/3e14765d6bfd8006742c9e7860bc7d58ae94dfa5) has already been released as v0.4.0 ### Workarounds By default, EGF parse functions do NOT attempt to decrypt values (since GPG is only available in non-browser env). However, if GPG encrypted values are used/required: 1. Perform a regex search for `#gpg`-tagged values in the EGF source file/string and check for backtick (\`) chars in the encrypted value strin
O3 Security · Impact-Aware SCA

Is GHSA-rj44-gpjc-29r7 in your dependencies?

O3 detects GHSA-rj44-gpjc-29r7 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-rj44-gpjc-29r7: egf Remote Code… | O3 Security