CVE-2026-8387
CVE-2026-8387 is a low-severity vulnerability with a CVSS 3.x base score of 2.4. 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: Low (CVSS 3.x base score 2.4)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-23
- Published:
- Last modified:
Description
A vulnerability in allegroai/clearml versions up to and including 1.16.5 allows for relative path traversal when extracting `.zip` archives using the `ZipFile.extractall()` method in `StorageManager._extract_to_cache()`. This issue arises due to the lack of path traversal validation, enabling an attacker to write arbitrary files to the filesystem. Attack vectors include dataset downloads, artifact downloads, model downloads, and offline session imports. The vulnerability can lead to remote code execution through methods such as cron job injection, SSH key overwrite, or web shell deployment. The issue is resolved in version 2.1.6.
Frequently asked questions
- What is CVE-2026-8387?
- A vulnerability in allegroai/clearml versions up to and including 1.16.5 allows for relative path traversal when extracting `.zip` archives using the `ZipFile.extractall()` method in `StorageManager._extract_to_cache()`. This issue arises due to the lack of path traversal validation, enabling an attacker to write arbitrary files to the filesystem. Attack vectors include dataset downloads, artifact downloads, model downloads, and offline session imports. The vulnerability can lead to remote code execution through methods such as cron job injection, SSH key overwrite, or web shell deployment. The issue is resolved in version 2.1.6.
- How severe is CVE-2026-8387?
- CVE-2026-8387 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-8387 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-8387?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-8387 published?
- CVE-2026-8387 was published on 2026-07-01 and last updated on 2026-07-02.
References
- https://github.com/allegroai/clearml/commit/4fd611c564256e4f294a6db133705120f203f476
- https://huntr.com/bounties/0f69bb0b-728e-411c-8676-8f2dfaf238db
Other CWE-23 vulnerabilities
- CVE-2026-52813 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to 0.14.3, organization names containing path traversal sequences…
- CVE-2026-8326 — Critical (CVSS 10.0): Path traversal vulnerability in Remote Spark (https://www.Remotespark.Com/) SparkView allows reading and writing…
- CVE-2026-33494 — Critical (CVSS 10.0): ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based…
- 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…