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Response snapshot Oct 27, 2026, 00:06 UTC

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VulnerabilityCVE-2026-113727

OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs

The OpenChoreo API server authorized `PUT .../workflowruns/{runName}` against ownership metadata taken from the request body, while the object it actually mutated was selected by the URL path. Nothing forced the two to agree.

At a glance

Exploited
Not known
Severity
7.4 High (CVSS 3.1)
Chance of exploitation
0.5% in the next 30 days
Sources
2 independent sources

What to do

GitHub lists first patched versions: github.com/openchoreo/openchoreo: 1.0.6; github.com/openchoreo/openchoreo: 1.1.7; github.com/openchoreo/openchoreo: 1.2.5. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-46r4-q7wv-32fc (opens a new tab)

What happened

## Summary

The OpenChoreo API server authorized `PUT .../workflowruns/{runName}` against ownership metadata taken from the request body, while the object it actually mutated was selected by the URL path. Nothing forced the two to agree.

A `WorkflowRun`'s membership in a project and component is carried entirely by its `openchoreo.dev/project` and `openchoreo.dev/component` labels.

Because the `workflowrun:update` check read those labels from the submitted object rather than the stored one, a caller holding `workflowrun:update` on one component could name a run belonging to a different project or component in the URL, supply labels for the component they legitimately control, pass the check, and have the unrelated run rewritten with their own ownership labels.

Continue reading

The namespace is taken from the URL and feeds both the authorization check and the Kubernetes read, so it cannot diverge. This is cross-project and cross-component escalation inside a single namespace, not a cross-tenant issue.

## Impact

Rewriting the ownership labels transfers authority over the run. Every other WorkflowRun check (view, logs, events, status, delete, list) derives its scope from the stored labels, so once the write lands the policy engine legitimately grants the attacker access to an object they never had rights to. They can then:

- Read the victim's build logs. These stream raw pod logs from the workflow plane and routinely carry source paths, registry destinations, and credentials a build step echoed by accident. - Read the run's Kubernetes events. - Delete the run.

So the primary impact is confidentiality and availability, not only integrity. On the integrity side, `spec.workflow.parameters` can be overwritten on a pending run, and manipulating the two ownership labels can either wedge the run in a permanent `ComponentValidationFailed` condition or downgrade it to a standalone run that skips component validation.

Exploitation requires an authenticated caller with an `AuthzRoleBinding` or `ClusterAuthzRoleBinding` granting `workflowrun:update` at project or component scope in the victim's namespace, plus knowledge of the target run's name. An anonymous caller cannot reach this.

## Patches

The authorization check now loads the stored WorkflowRun and derives every ownership attribute from it instead of from the request body. Separately, the `openchoreo.dev/project` and `openchoreo.dev/component` labels are now immutable on update, so an authorized caller cannot hand their own run to another project either.

| Line | Affected | Fixed in | |---|---|---| | 1.0.x | 1.0.0 through 1.0.5 | 1.0.6 | | 1.1.x | 1.1.0 through 1.1.6 | 1.1.7 | | 1.2.x | 1.2.0 through 1.2.4 | 1.2.5 |

Upgrade to the patched release on your line. No configuration change is needed after upgrading.

## Workarounds

If you cannot upgrade immediately, restrict who holds `workflowrun:update`.

Audit your `AuthzRole` and `ClusterAuthzRole` definitions for that action and remove it from any role granted to principals you would not trust with write access to every workflow run in the namespace. Among the roles shipped with OpenChoreo, only the system role `workload-publisher` lists `workflowrun:update` explicitly, and `admin` holds it through its `*` wildcard. Custom roles in your own values file may also include it, so check those.

Treat any credential bound to `workload-publisher` as privileged. CI systems are the usual holder, and a leaked CI token is enough to run this.

Affected package ranges reported by GitHub: github.com/openchoreo/openchoreo: >= 1.0.0, < 1.0.6 github.com/openchoreo/openchoreo: >= 1.1.0, < 1.1.7 github.com/openchoreo/openchoreo: >= 1.2.0, < 1.2.5

Scores and how they were measured

CVSS base severity

7.4

Version 3.1As of

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

0.5%

Scored Percentile 40.0%

Model and measurement source (opens a new tab)

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-46r4-q7wv-32fc (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  3. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  4. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  5. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  6. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  7. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  8. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  9. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  10. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  11. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-46r4-q7wv-32fc, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  12. Primary source

    NVD CVE-2026-113727 (opens a new tab)

    NVD record: description, CVSS (the CNA score is preferred), affected products, and publication date. Not evidence of exploitation.

    Published Checked

  13. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

  14. Primary source

    FIRST measured EPSS score (opens a new tab)

    Measured EPSS probability and percentile for CVE-2026-113727, scored 2026-10-26. This is a model estimate, not proof of exposure.

    Published Checked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 23). OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs (CVE-2026-113727). https://kevwire.com/record/CVE-2026-113727

MLA

"OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs (CVE-2026-113727)." KEVWire, 23 Oct. 2026, kevwire.com/record/CVE-2026-113727.

Chicago

KEVWire. "OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs (CVE-2026-113727)." Last modified October 23, 2026. https://kevwire.com/record/CVE-2026-113727.

Evidence summary (plain text)

OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs (Oct 21, 2026).
The OpenChoreo API server authorized `PUT .../workflowruns/{runName}` against ownership metadata taken from the request body, while the object it actually mutated was selected by the URL path. Nothing forced the two to agree.

A `WorkflowRun`'s membership in a project and component is carried entirely by its `openchoreo.dev/project` and `openchoreo.dev/component` labels. Because the `workflowrun:update` check read those labels from the submitted object rather than the stored one, a caller holding `workflowrun:update` on one component could name a run belonging to a different project or component in the URL, supply labels for the component they legitimately control, pass the check, and have the unrelated run rewritten with their own ownership labels.
CVSS 7.4 (version 3.1; evidence as of Oct 23, 2026; https://nvd.nist.gov/vuln/detail/CVE-2026-113727).
EPSS 0.5% for the following 30 days, scored Oct 26, 2026 (https://api.first.org/data/v1/epss?cve=CVE-2026-113727&date=2026-10-26).
Sources:
GitHub-reviewed advisory GHSA-46r4-q7wv-32fc: https://github.com/advisories/GHSA-46r4-q7wv-32fc
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMlQxNTo1Mjo1NlrOAAfxiA%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMlQxNDowNjoxNFrOAAfxZw%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMlQwODoyNzoyM1rOAAYp9A%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMTozNTo1OFrOAAfwCQ%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMTozMDoxM1rOAAfv2A%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMToyODowOVrOAAfv1g%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMToyNDoyMFrOAAfv1Q%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDo0NTowN1rOAAfvzQ%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDozMDoyNlrOAAfvxw%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDowMzo1N1rOAAfvxQ%3D%3D
NVD CVE-2026-113727: https://nvd.nist.gov/vuln/detail/CVE-2026-113727
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?pubStartDate=2026-10-12T13:35:55.142Z&pubEndDate=2026-10-26T13:35:55.142Z&resultsPerPage=500&startIndex=7000
FIRST measured EPSS score: https://api.first.org/data/v1/epss?cve=CVE-2026-113727&date=2026-10-26
Record ID: CVE-2026-113727.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 26, 2026, 19:40 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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