Answer in brief
CVE-2024-12401 records a Medium severity (CVSS 4.4) vulnerability in Cert-manager: potential dos when parsing specially crafted pem inputs. The current sources do not mark it as known exploited. The current feed maps github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go), github.com/cert-manager/cert-manager (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/cert-manager/cert-managergo | <1.12.14 | 1.12.14 |
| github.com/cert-manager/cert-managergo | >=1.13.0-alpha.0,<1.15.4 | 1.15.4 |
| github.com/cert-manager/cert-managergo | >=1.16.0-alpha.0,<1.16.2 | 1.16.2 |
| github.com/cert-manager/cert-managergo | >=0 <1.12.14 | 1.12.14 |
| github.com/cert-manager/cert-managergo | >=1.13.0-alpha.0 <1.15.4 | 1.15.4 |
| github.com/cert-manager/cert-managergo | >=1.16.0-alpha.0 <1.16.2 | 1.16.2 |
Published upstream
Dec 12, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
A flaw was found in the cert-manager package. This flaw allows an attacker who can modify PEM data that the cert-manager reads, for example, in a Secret resource, to use large amounts of CPU in the cert-manager controller pod to effectively create a denial-of-service (DoS) vector for the cert-manager in the cluster.
Quoted source text, attributed separately from HOL analysis.