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HIGH severity

RCE via ZipSlip and symbolic links in argoproj/argo-workflowsGHSA-xrqc-7xgx-c9vh

HIGHFix: argoproj/argo-workflows@6b92af2

GHSA-xrqc-7xgx-c9vh is a high-severity (CVSS 8.1) CWE-23 vulnerability in github.com/argoproj/argo-workflows/v3. A fix is available for github.com/argoproj/argo-workflows/v3 — see the affected versions and patch details below.

Also known asBIT-argo-workflows-2025-66626CVE-2025-66626GO-2025-4223
Published
Updated
Affected
3 pkgs
Patched
2 / 3
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for GHSA-xrqc-7xgx-c9vh.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk+0.13%
Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk
0.00%0.41%0.82%1.23%0.1%0.1%0.6%0.6%0.7%May 26Jul 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected
🐹github.com/argoproj/argo-workflows/v3🐹github.com/argoproj/argo-workflows/v3🐹github.com/argoproj/argo-workflows

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

Summary

The patch deployed against CVE-2025-62156 is ineffective against malicious archives containing symbolic links.

Details

The untar code that handles symbolic links in archives is unsafe. Concretely, the computation of the link's target and the subsequent check are flawed: https://github.com/argoproj/argo-workflows/blob/5291e0b01f94ba864f96f795bb500f2cfc5ad799/workflow/executor/executor.go#L1034-L1037

PoC

  1. Create a malicious archive containing two files: a symbolik link with path "./work/foo" and target "/etc", and a normal text file with path "./work/foo/hostname".
  2. Deploy a workflow like the one in https://github.com/argoproj/argo-workflows/security/advisories/GHSA-p84v-gxvw-73pf with the malicious archive mounted at /work/tmp.
  3. Submit the workflow and wait for its execution.
  4. Connect to the corresponding pod and observe that the file "/etc/hostname" was altered by the untar operation performed on the malicious archive. The attacker can hence alter arbitrary files in this way.

Impact

The attacker can overwrite the file /var/run/argo/argoexec with a script of their choice, which will be executed at the pod's start.

Affected Packages

3 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/argoproj/argo-workflows/v3≥ 3.7.0&&< 3.7.53.7.5go get github.com/argoproj/argo-workflows/v3@v3.7.5
🐹Gogithub.com/argoproj/argo-workflows/v3all versions3.6.14go get github.com/argoproj/argo-workflows/v3@v3.6.14
🐹Gogithub.com/argoproj/argo-workflowsall versionsNo fix

Affected Products

1 product · 2 configurations
Application
argo workflowsargoproj
≥ 3.7.0 && < 3.7.5
range

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/argoproj/argo-workflows/v3, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/argoproj/argo-workflows/v3 to 3.7.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xrqc-7xgx-c9vh is resolved across your whole dependency graph.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

Red Hat Product Security has rated this issue as High severity (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H, 8.1) because an attacker with basic workflow submission privileges can supply a specially crafted archive that is automatically extracted without proper validation. The attack complexity is low and does not…

Workaround published by Red Hat
No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.
Source: Red Hat security advisory for GHSA-xrqc-7xgx-c9vh (CC BY 4.0)
ProductFixed inAdvisory
Red Hat OpenShift AI 2.16rhoai/odh-data-science-pipelines-argo-argoexec-rhel8:1774282136RHSA-2026:5807
Red Hat OpenShift AI 2.25rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:1770224105RHSA-2026:2106
Red Hat OpenShift AI 2.25rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:1770281866RHSA-2026:2695
Red Hat OpenShift AI 3.3rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:1771500865RHSA-2026:3713
Red Hat OpenShift AI 3.4rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:1787002529RHSA-2026:60520
Red Hat OpenShift AI 3.5rhoai/odh-latency-predictor-prediction-rhel9:1786552271RHSA-2026:60367

Frequently Asked Questions

### Summary The patch deployed against CVE-2025-62156 is ineffective against malicious archives containing symbolic links. ### Details The untar code that handles symbolic links in archives is unsafe. Concretely, the computation of the link's target and the subsequent check are flawed: https://github.com/argoproj/argo-workflows/blob/5291e0b01f94ba864f96f795bb500f2cfc5ad799/workflow/executor/executor.go#L1034-L1037 ### PoC 1. Create a malicious archive containing two files: a symbolik link with path "./work/foo" and target "/etc", and a normal text file with path "./work/foo/hostname". 2. De
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RCE via ZipSlip and symbolic links in argoproj/argo-workfl…