CVE-2025-55199
No exploitation reported by the sources we read.
- Published2025-08-14
- WeaknessCWE-770
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
Helm is a package manager for Charts for Kubernetes. Prior to version 3.18.5, it is possible to craft a JSON Schema file in a manner which could cause Helm to use all available memory and have an out of memory (OOM) termination. This issue has been resolved in Helm 3.18.5. A workaround involves ensuring all Helm charts that are being loaded into Helm do not have any reference of $ref pointing to /dev/zero.
Timeline
dates in UTC- 2025-08-1400:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-55199?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-55199?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
OSV · NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | OSV |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.18 | < 3.18.5 | 3.18.5 | 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
Red Hat Security Advisory: OpenShift Container Platform 4.21.1 bug fix and security update
Fix
- Vendor fix Red Hat Product Security RHSA-2026:2129 · 4 productsFor OpenShift Container Platform 4.21 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.…
- Workaround from the vendor Red Hat Product Security RHSA-2026:2129 · 659 productsTo mitigate this flaw, ensure all Helm charts do not have any reference of $ref pointing to /dev/zero.
Advisories and patches
- github.comPatch
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:N/I:N/A:H
- Published
- 2025-08-14
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2025-55199?
Is CVE-2025-55199 actively exploited?
What is the CVSS score for CVE-2025-55199?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.