CVE-2023-27602 — In Apache Linkis <=1

In Apache Linkis <=1.3.1, The PublicService module uploads files without restrictions on the path to the uploaded files, and file types.

01What is this vulnerability?

In Apache Linkis <=1.3.1, The PublicService module uploads files without restrictions on the path to the uploaded files, and file types.

02Affected products

Vendor	Product	Versions
Apache Software Foundation	Apache Linkis	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-04-10T07:36:28.437Z
• Last modified: 2025-02-13T16:45:29.640Z

09References

• lists.apache.org — https://lists.apache.org/thread/wt70jfc0yfs6s5g0wg5dr5klnc48nsp1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/04/10/1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/04/18/4
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/04/19/3