5.5

CVE-2023-38037: rails activesupport

Deferred
AliasesopenSUSE-SU-2023:0350-1UBUNTU-CVE-2023-38037DEBIAN-CVE-2023-38037
Published 09-01-2025Last modified 15-02-2025

Vulnerability summary

CVE-2023-38037 is a medium (CVSS 5.5) vulnerability in rails activesupport. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.0 (CVE.org)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 8
DLA-4383-1DSA-5881-1OPENSUSE-SU-2024:14069-1OPENSUSE-SU-2024:14071-1OPENSUSE-SU-2024:14074-1OPENSUSE-SU-2025:15112-1

Timeline

  1. 09-01-2025
    PublishedVulnerability first disclosed.
  2. 15-02-2025
    Last modifiedVulnerability information updated.

Description

ActiveSupport::EncryptedFile writes contents that will be encrypted to a temporary file. The temporary file's permissions are defaulted to the user's current `umask` settings, meaning that it's possible for other users on the same system to read the contents of the temporary file. Attackers that have access to the file system could possibly read the contents of this temporary file while a user is editing it. All users running an affected release should either upgrade or use one of the workarounds immediately.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.

Opensuse4 products
  • ruby3.2-rubygem-activerecord-7.0&distro=openSUSE Tumbleweed< 7.0.8-1.1
  • ruby3.2-rubygem-activesupport-7.0&distro=openSUSE Tumbleweed< 7.0.8-1.1
  • ruby3.2-rubygem-rails-7.0&distro=openSUSE Tumbleweed< 7.0.8-1.1
  • rubygem-activesupport-5.2&distro=openSUSE Leap 15.5< 5.2.3-bp155.3.5.1
Chainguard1 product
  • kube-fluentd-operator< 1.17.6-r8
Debian1 product
  • rails< 2:6.1.7.10+dfsg-1~deb12u1 | < 2:7.2.2.1+dfsg-1
Rails1 product
RubyGems1 product
  • activesupport≥ 5.2.0, < 6.1.7.5 | ≥ 7.0.0, < 7.0.7.1
Suse1 product
  • rubygem-activesupport-5.2&distro=SUSE Package Hub 15 SP5< 5.2.3-bp155.3.5.1
Ubuntu1 product
  • railsAll versions (No fix recorded)
Wolfi1 product
  • kube-fluentd-operator< 1.17.6-r8

8 vendors · 11 products

References

16 links
Show all 16 references