CVE-2024-30254
CVE-2024-30254 is a medium-severity vulnerability with a CVSS 3.x base score of 5.8. 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-22.
Key facts
- Severity: Medium (CVSS 3.x base score 5.8)
- EPSS exploit prediction: 0% (9th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-28181
- Weakness: CWE-22
- Published:
- Last modified:
Description
MesonLSP is an unofficial, unendorsed language server for meson written in C++. A vulnerability in versions prior to 4.1.4 allows overwriting arbitrary files if the attacker can make the victim either run the language server within a specific crafted project or `mesonlsp --full`. Version 4.1.4 contains a patch for this issue. As a workaround, avoid running `mesonlsp --full` and set the language server option `others.neverDownloadAutomatically` to `true`.
Frequently asked questions
- What is CVE-2024-30254?
- MesonLSP is an unofficial, unendorsed language server for meson written in C++. A vulnerability in versions prior to 4.1.4 allows overwriting arbitrary files if the attacker can make the victim either run the language server within a specific crafted project or `mesonlsp --full`. Version 4.1.4 contains a patch for this issue. As a workaround, avoid running `mesonlsp --full` and set the language server option `others.neverDownloadAutomatically` to `true`.
- How severe is CVE-2024-30254?
- CVE-2024-30254 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2024-30254 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-30254?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-30254 have an EU (EUVD) identifier?
- Yes. CVE-2024-30254 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-28181.
- When was CVE-2024-30254 published?
- CVE-2024-30254 was published on 2024-04-04 and last updated on 2026-06-17.
References
- https://github.com/JCWasmx86/mesonlsp/commit/594b6334061371911cd59389124ab8af30ce0a3a
- https://github.com/JCWasmx86/mesonlsp/security/advisories/GHSA-48c5-35fh-846h
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