What’s Vulnerable › Vulnerabilities

CVE-2023-33251

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-21 · updated 2026-06-17
• Weakness: CWE-732

Description

When Akka HTTP before 10.5.2 accepts file uploads via the FileUploadDirectives.fileUploadAll directive, the temporary file it creates has too weak permissions: it is readable by other users on Linux or UNIX, a similar issue to CVE-2022-41946.

Affected products

• Lightbend Akka Http: before 10.5.2 — fixed in 10.5.2

How to fix

Upgrade to a fixed version: Lightbend Akka Http 10.5.2. Check the vendor advisory for mitigations.

References

• https://akka.io/security/akka-http-cve-2023-05-15.html
• https://akka.io/security/akka-http-cve-2023-05-15.html
• https://doc.akka.io/reference/security-announcements/akka-http-cve-2023-05-15.html

Get alerted when CVE-2023-33251 or the next vulnerability affects your stack