5.3

CVE-2023-27531: rails kredis json Deserialization of Untrusted Data

CVSS: 5.3v3.1MediumDeferred
AliasesGHSA-h2wm-p2vg-6pw4
Published 09-01-2025Last modified 09-01-2025
Open JSON

Vulnerability summary

CVE-2023-27531 is a medium (CVSS 5.3) Deserialization of Untrusted Data vulnerability in rails kredis json. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-01-2025
    PublishedVulnerability first disclosed.
  2. 09-01-2025
    Last modifiedVulnerability information updated.

Description

There is a deserialization of untrusted data vulnerability in the Kredis JSON deserialization code

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.01 pp

From 0.53% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Rails1 product
RubyGems1 product
  • kredis< 1.3.0.1

2 vendors · 2 products

References

7 links