CVE-2021-25738: kubernetes java Improper Input Validation
CVSS: 6.7v3.1MediumModified
AliasesGHSA-m8wh-mqgf-rr8g
Published 11-10-2021Last modified 16-09-2024
Vulnerability summary
CVE-2021-25738 is a medium (CVSS 6.7) Improper Input Validation vulnerability in kubernetes java. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.6% of scored vulnerabilities.
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-10-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
Loading specially-crafted yaml with the Kubernetes Java Client library can lead to code execution.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · MavenEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
0.00 pp
From 0.47% on 20-09-2026
20-09-202620-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-502Deserialization of Untrusted DataThe product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected systems
Kubernetes2 products
- java≤ 9.0.2 | ≥ 10.0.0, ≤ 10.0.1 | ≥ 11.0.0, < 11.0.1
- kubernetes java clientv12.0.0 | ≥ unspecified, ≤ v11.0.1 | ≥ unspecified, ≤ v10.0.1 | ≥ unspecified, ≤ v9.0.2
Io.kubernetes1 product
- client-java< 11.0.1
2 vendors · 3 products
References
5 links- groups.google.com/g/kubernetes-security-announce/c/K_pOK2WbAJkX Refsource MISCWEBMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2022/08/23/2Mailing ListX Refsource MLISTWEBThird Party Advisory
