CVE-2023-45277 json
Yamcs Path Traversal vulnerability
published 2023-10-19 3 y ago modified 2026-06-17 4 mo ago also GHSA-w4m2-qmh3-2g8f , EUVD-2023-2824
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.
Patch / fix
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- linkedin.com https://www.linkedin.com/pulse/yamcs-vulnerability-assessment-visionspace-technologies referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.yamcs:yamcs | <5.8.7 |
5.8.7 |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/yamcs/yamcs/compare/yamcs-5.8.6...yamcs-5.8.7
web, patch
-
linkedin.com
/pulse/yamcs-vulnerability-assessment-visionspace-technologies
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-45277
advisory
-
github.com
/yamcs/yamcs
package
Sources
- CVE List CVE-2023-45277
- GitHub Advisory GHSA-w4m2-qmh3-2g8f
- NVD CVE-2023-45277
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.