CVE-2023-27531 json
Kredis JSON Possible Deserialization of Untrusted Data Vulnerability
published 3y ago modified 4mo ago also GHSA-h2wm-p2vg-6pw4 , EUVD-2023-1812
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
There is a deserialization of untrusted data vulnerability in the Kredis JSON deserialization code
Patch / fix
- rubygems kredis 1.3.0.1
Is CVE-2023-27531 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | kredis | <1.3.0.1 |
1.3.0.1 |
Affected products
- Rails Kredis JSON
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/rails/kredis/commit/d576b7ae5c8d3d74eeb4bd84cad0aa64ffc299fa
web
-
discuss.rubyonrails.org
/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467
web
-
nvd.nist.gov
/vuln/detail/CVE-2023-27531
advisory
-
discuss.rubyonrails.org
/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467#post_1
web
-
github.com
/rails/kredis
package
-
github.com
/rails/kredis/releases/tag/v1.3.0.1
web
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/kredis/CVE-2023-27531.yml
web
Sources
- CVE List CVE-2023-27531
- GitHub Advisory GHSA-h2wm-p2vg-6pw4
- NVD CVE-2023-27531
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.