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MEDIUM severity

GHSA-3mq9-xhgq-r7gj eve

MEDIUMFix: lf-edge/eve@5fef4d9

GHSA-3mq9-xhgq-r7gj is a medium-severity (CVSS 5.9) CWE-522 vulnerability in github.com/lf-edge/eve. A fix is available for github.com/lf-edge/eve — see the affected versions and patch details below.

EVE: SSH as Root Unlockable Without Triggering Measured Boot

Also known asCVE-2023-43631GO-2026-4418
Published
Feb 4, 2026
Updated
Feb 5, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 18, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-3mq9-xhgq-r7gj.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs5th percentile — riskier than 5% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-3mq9-xhgq-r7gj plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐹github.com/lf-edge/eve

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

On boot, the Pillar container checks for /config/authorized_keys. If present with a valid public key, it enables SSH on port 22 with root login. The /config partition is not protected by measured boot, is mutable and unencrypted.

This enables an attacker with physical access to the device to take out the disk, modify the /config partition using a separate server, then insert it, without the inserted key being flagged as an integrity voilation my measured boot and remote attestation.

Patches

Patched in 9.4.3-lts

Workarounds

None (apart from preventing physical access to the device)

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/lf-edge/eveall versions0.0.0-20220708121648-5fef4d92e758go get github.com/lf-edge/eve@v0.0.0-20220708121648-5fef4d92e758

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/lf-edge/eve, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/lf-edge/eve to 0.0.0-20220708121648-5fef4d92e758 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3mq9-xhgq-r7gj 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-3mq9-xhgq-r7gj can be triaged on real exposure rather than presence alone.

Tailored to GHSA-3mq9-xhgq-r7gj. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact On boot, the Pillar container checks for /config/authorized_keys. If present with a valid public key, it enables SSH on port 22 with root login. The /config partition is not protected by measured boot, is mutable and unencrypted. This enables an attacker with physical access to the device to take out the disk, modify the /config partition using a separate server, then insert it, without the inserted key being flagged as an integrity voilation my measured boot and remote attestation. ### Patches Patched in 9.4.3-lts ### Workarounds None (apart from preventing physical access to
O3 Security · Impact-Aware SCA

Is GHSA-3mq9-xhgq-r7gj in your dependencies?

O3 Security finds GHSA-3mq9-xhgq-r7gj across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-3mq9-xhgq-r7gj: eve (Medium 5.9) | O3 Security