CVE-2026-29184
No exploitation reported by the sources we read.
- Published2026-03-07
- Fixed in3.1.4
- WeaknessCWE-532
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4.
Timeline
dates in UTC- 2026-03-0715:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 15:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-29184?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-29184?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.1 | < 3.1.4 | 3.1.4 | NVD · OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
@backstage/plugin-scaffolder-backend: Backstage Scaffolder Backend: Information disclosure via malicious template bypassing log redaction
rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub · ansible-automation-platform/automation-portal as a component of Self-service automation portal 2
Fix
- Update Linuxfoundation backstage\/plugin-scaffolder-backend to 3.1.4
- Workaround from the vendor Red Hat Product Security CVE-2026-29184 · 2 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
- No fix available, says the vendor Red Hat Product Security CVE-2026-29184 · 2 productsFix deferred
Advisories and patches
- github.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Published
- 2026-03-07
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2026-29184?
Is CVE-2026-29184 actively exploited?
What is the CVSS score for CVE-2026-29184?
Running @backstage/plugin-scaffolder-bac? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.