CVE-2023-28118
CVE-2023-28118 is a high-severity vulnerability in Kaml Project Kaml with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-776.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-776
- Affected product: Kaml Project Kaml
- Published:
- Last modified:
Description
kaml provides YAML support for kotlinx.serialization. Prior to version 0.53.0, applications that use kaml to parse untrusted input containing anchors and aliases may consume excessive memory and crash. Version 0.53.0 and later default to refusing to parse YAML documents containing anchors and aliases. There are no known workarounds.
Frequently asked questions
- What is CVE-2023-28118?
- kaml provides YAML support for kotlinx.serialization. Prior to version 0.53.0, applications that use kaml to parse untrusted input containing anchors and aliases may consume excessive memory and crash. Version 0.53.0 and later default to refusing to parse YAML documents containing anchors and aliases. There are no known workarounds.
- How severe is CVE-2023-28118?
- CVE-2023-28118 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-28118 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-28118?
- CVE-2023-28118 affects Kaml Project Kaml. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-28118?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-28118 published?
- CVE-2023-28118 was published on 2023-03-20 and last updated on 2026-06-17.
References
- https://github.com/charleskorn/kaml/commit/5f82a2d7e00bfc307afca05d1dc4d7c50593531a
- https://github.com/charleskorn/kaml/releases/tag/0.53.0
- https://github.com/charleskorn/kaml/security/advisories/GHSA-c24f-2j3g-rg48
Affected products (1)
- cpe:2.3:a:kaml_project:kaml:*:*:*:*:*:*:*:*
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