CVE-2023-27531

mediumpriority · track · 0EPSS 0.005 · 45 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.54% (45th) EPSS

CVSS 5.3 · medium

Is it mine?

12 products

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

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

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source Ruby on Rails <Kredis 1.3.0.1all versionscert_bundDE
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat OpenShift Logging Subsystem 5.7.2all versionscert_bundDEcpe:/a:redhat:openshift:logging_subsystem_5.7.2
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Ruby on Rails< Kredis 1.3.0.1cert_bundDE
Kredis JSON1.3.0.1 → 1.3.0.1enisa_euvdEU
RubyGems kredis< 1.3.0.1osvUSpkg:gem/kredis

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0632Ruby on Rails: Mehrere SchwachstellenDeutsch2023-03-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Ruby on Rails ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, unbekannte Auswirkungen zu verursachen oder einen Denial of Service Zustand herbeizuführen.
GHSA-h2wm-p2vg-6pw4Kredis JSON Possible Deserialization of Untrusted Data Vulnerability2023-06-09ghsa · osvUS
There is a deserialization of untrusted data vulnerability in the Kredis JSON deserialization code. This vulnerability has been assigned the CVE identifier CVE-2023-27531. 'Not affected: None.' 'Versions Affected: All.' 'Fixed Versions: 1.3.0.1' Impact Carefully crafted JSON data processed by Kredis may result in deserialization of untrusted data, potentially leading to deserialization of unexpected objects in the system. Any applications using Kredis with JSON are affected. Releases The fixed releases are available at the normal locations. Workarounds There are no feasible workarounds for this issue. Patches To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. * 1-3-0-1-kredis.patch - Patch for 1.3.0 series Credits Thank you ooooooo_k 7 for reporting this!

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 2025-01-09modified 2026-06-17

External citations — patches, advisories, analysis.

scry

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