Evidence used
- No CISA KEV confirmation is currently recorded.
- Exploitation requires an existing local or physical foothold with privileges.
- EPSS is 0.27% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2025
CVE-2023-38037High confidence
Attackers that have access to the file system could possibly read the contents of this temporary file while a user is editing it
Rails · ActiveSupport
5.5MediumCVSS 3.0
Scheduled
Patch availableMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Low, lowered one band.downgradedsince 15 Feb 2025
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict local access and enforce least privilege on affected hosts.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs Rails ActiveSupport and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Distribution package intelligence
5 package statesRelease-specific package status
Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Debian trixietrixie · source | rails | Vendor fix publishedDebian records a fixed source-package version for this release. | 2:7.2.2.1+dfsg-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian bookwormbookworm · source | rails | Vendor fix publishedDebian records a fixed source-package version for this release. | 2:6.1.7.10+dfsg-1~deb12u1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian forkyforky · source | rails | Vendor fix publishedDebian records a fixed source-package version for this release. | 2:7.2.2.1+dfsg-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian sidsid · source | rails | Vendor fix publishedDebian records a fixed source-package version for this release. | 2:7.2.2.1+dfsg-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | rails | Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing. | Not published in this feed | Canonical Ubuntu Security ↗Source updated 5 Oct 2026 |
Open-source package ranges4 source-attributed ranges
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| RubyGemsactivesupport | ECOSYSTEM: introduced 5.2.0; fixed 6.1.7.5 | 6.1.7.5 | OSV record ↗aggregator derived · 10 Sep 2026 |
| RubyGemsactivesupport | ECOSYSTEM: introduced 7.0.0; fixed 7.0.7.1 | 7.0.7.1 | OSV record ↗aggregator derived · 10 Sep 2026 |
| rubygemsactivesupport | >= 5.2.0, < 6.1.7.5 | 6.1.7.5 | GitHub advisory ↗github reviewed aggregator · 18 Feb 2025 |
| rubygemsactivesupport | >= 7.0.0, < 7.0.7.1 | 7.0.7.1 | GitHub advisory ↗github reviewed aggregator · 18 Feb 2025 |
Direct vendor intelligence
1 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
CVE-2023-38037 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityrubygem-activesupport: File Disclosure of Locally Encrypted Files
The vendor explicitly identifies these products as affected by this CVE.
- 3scale-amp-backend-container as a component of Red Hat 3scale API Management Platform 2
- tfm-rubygem-activesupport as a component of Red Hat Satellite 6
- tfm-rubygem-activesupport.src as a component of Red Hat Satellite 6
- rubygem-activesupport as a component of Red Hat Storage 3
- rubygem-activesupport-doc as a component of Red Hat Storage 3
- rubygem-activesupport.src as a component of Red Hat Storage 3
- Summary
- An insecure temporary file vulnerability was found in activesupport rubygem. Contents that will be encrypted are written to a temporary file that has the user’s current umask settings, possibly leading to information disclosure by other users on the same system.
- Remediation
- Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available01
What, why and how
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.
What
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.
Why
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
How
An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
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.
Why
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
How
An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- local access → Incorrect Permission Assignment for Critical Resource → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Local
- Privileges required
- Low: a basic authenticated account is required
- User interaction
- Required interaction required
- Attack complexity
- High: exploitation depends on specific conditions
- Security boundary
- Unchanged: impact remains within the vulnerable component's security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-732 ↗
CWE-732: Incorrect Permission Assignment for Critical Resource. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:LCommon Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.ILowIntegrity impact: A successful attack can cause a limited loss.ALowAvailability impact: A successful attack can cause a limited loss.- Post-exploitation / living off the land
- The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Patch available
- Affected
- 3scale-amp-backend-container as a component of Red Hat 3scale API Management Platform 2
- tfm-rubygem-activesupport as a component of Red Hat Satellite 6
- tfm-rubygem-activesupport.src as a component of Red Hat Satellite 6
- rubygem-activesupport as a component of Red Hat Storage 3
- rubygem-activesupport-doc as a component of Red Hat Storage 3
- rubygem-activesupport.src as a component of Red Hat Storage 3
- Fixed
- openshift-logging/fluentd-rhel8@sha256:1d49c89ce43c24085f48834dfcc41b3dc726f082dec28389d48eb2e62abc628f_ppc64le as a component of RHOL 5.7 for RHEL 8
- openshift-logging/fluentd-rhel8@sha256:2e0f03f79a9d44274e14c1d997cb46e3455ad22fea5b35bd13a143bac2f5e3c3_s390x as a component of RHOL 5.7 for RHEL 8
- openshift-logging/fluentd-rhel8@sha256:bc1a6fcfac60a81f4df3f34ae8eb7ee2548d30790982ac4e8aa76ee093a508b1_amd64 as a component of RHOL 5.7 for RHEL 8
- openshift-logging/fluentd-rhel8@sha256:fbe3784db6708d173898fff0d59ea5872e943dd85107c585ac14ed3fe64a5673_arm64 as a component of RHOL 5.7 for RHEL 8
- rubygem-activesupport-0:6.1.7.6-1.el8sat.noarch as a component of Red Hat Satellite 6.15 for RHEL 8
- rubygem-activesupport-0:6.1.7.6-1.el8sat.src as a component of Red Hat Satellite 6.15 for RHEL 8
- openshift-logging/fluentd-rhel9@sha256:3cdbc5179cb7bba76cdcf10913d55c7935ab04c0b83ce6e6169d3446ae5fc480_amd64 as a component of RHOL 5.8 for RHEL 9
- openshift-logging/fluentd-rhel9@sha256:a6f4fd3e1f093375c7e0f2f154196c06bace153fbfcb0237a56c0387d2edeb7b_arm64 as a component of RHOL 5.8 for RHEL 9
- openshift-logging/fluentd-rhel9@sha256:acbb6a11b716567129eb39902cccd1b38934545bd46000dd3a54f7cbfd92674c_ppc64le as a component of RHOL 5.8 for RHEL 9
- openshift-logging/fluentd-rhel9@sha256:d80cbd7b15463fa3038b09734cab45f245c1f5c43c2f0ae1216a25304a87ae14_s390x as a component of RHOL 5.8 for RHEL 9
- Action
- Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 9 Jan 2025 · Last source change 15 Feb 2025, 00:10 UTC · CWE-732 · Incorrect Permission Assignment for Critical Resource
CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2023-2274
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCISA ADP
NVD statusNVD not scheduled
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.
CVE published
Fixed release or patch reference recorded
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.