CVE-2026-34026
CVE-2026-34026 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. 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-23.
Key facts
- Severity: High (CVSS 4.0 base score 7.1)
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-36709
- Weakness: CWE-23
- Published:
- Last modified:
Description
Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains a path traversal vulnerability in the documentName parameter of the /safe/selfservice/openselfservicedocument endpoint. The application constructs a file path using attacker-controlled input without sufficient validation, allowing an authenticated attacker with any role or permission level to traverse out of the intended document directory and download arbitrary files accessible to the application. This includes, but is not limited to, application log files containing sensitive information and application binaries.
Frequently asked questions
- What is CVE-2026-34026?
- Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains a path traversal vulnerability in the documentName parameter of the /safe/selfservice/openselfservicedocument endpoint. The application constructs a file path using attacker-controlled input without sufficient validation, allowing an authenticated attacker with any role or permission level to traverse out of the intended document directory and download arbitrary files accessible to the application. This includes, but is not limited to, application log files containing sensitive information and application binaries.
- How severe is CVE-2026-34026?
- CVE-2026-34026 has a CVSS 4.0 base score of 7.1, rated high severity.
- Is CVE-2026-34026 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-34026?
- 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.
- Does CVE-2026-34026 have an EU (EUVD) identifier?
- Yes. CVE-2026-34026 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36709.
- When was CVE-2026-34026 published?
- CVE-2026-34026 was published on 2026-06-15 and last updated on 2026-06-17.
References
Other CWE-23 vulnerabilities
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- CVE-2023-3941 — Critical (CVSS 10.0): Relative Path Traversal vulnerability in ZkTeco-based OEM devices allows an attacker to write any file on the system…
- CVE-2024-24578 — Critical (CVSS 10.0): RaspberryMatic is an open-source operating system for HomeMatic internet-of-things devices. RaspberryMatic / OCCU prior…
- CVE-2012-6069 — Critical (CVSS 10.0): The CoDeSys Runtime Toolkit’s file transfer functionality does not perform input validation, which allows an…