CVE-2026-30246

Aliases:GHSA-35hp-hqmv-8qg8GO-2026-5069
Advisory lineage Upstream: 0 Downstream: 3
Analyzed
Published: 05 May 2026, 12:40
Last modified:05 May 2026, 15:04

Vulnerability Summary

Overall Risk (default)
medium
36/100
CVSS Score
6.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.25% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

05 May 2026, 12:40
Published
Vulnerability first disclosed
05 May 2026, 15:04
Last Modified
Vulnerability information updated

Description

Fiber is a web framework for Go. In github.com/gofiber/fiber/v3 versions through 3.1.0, the default key generator in the cache middleware uses only the request path and does not include the query string. As a result, requests for the same path with different query parameters can share a cache key and receive the wrong cached response. This can cause response mix-up for query-dependent endpoints and may expose data intended for a different request. This issue is fixed after version 3.1.0.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Trends

Current EPSS score: 0.25%• Percentile: 17%

Techniques & Countermeasures

  • CWE-436•Interpretation Conflict

    Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

Affected Systems

  • gofiber•fiber

    ≥ v3.0.0-beta.2, < 3.1.0 | ≤ 3.1.0

  • github.com/gofiber/fiber•v3

    < 3.2.0

References (7)