Evidence used
- No CISA KEV confirmation is currently recorded.
- A structured source references public exploit or proof-of-concept material.
- EPSS is 0.13% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-96889High confidence
Librsvg: use-after-free when xml includes have duplicated entities
Red Hat · Red Hat Enterprise Linux 10
7.8HighCVSS 3.1
Within 7 days
Fix not verifiedHigh technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
Compensating controls
- Restrict local access and enforce least privilege on affected hosts.
- Increase monitoring for the attack path and post-exploitation behaviour described in the report.
Verification
- Confirm that the asset runs Red Hat Red Hat Enterprise Linux 10 and falls inside the recorded affected range.
- Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
- 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 | librsvg | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian bookwormbookworm · source | librsvg | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian forkyforky · source | librsvg | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian sidsid · source | librsvg | Vendor fix publishedDebian records a fixed source-package version for this release. | 2.63.2+dfsg-1 | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | librsvg | Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree. | 2.58.0+dfsg-1ubuntu0.1 | Canonical Ubuntu Security ↗Source updated 8 Oct 2026 |
Direct vendor intelligence
2 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-2026-96889 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-96889
The vendor explicitly identifies these products as affected by this CVE.
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg-2-2 as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg-devel as component of SUSE Linux Enterprise Desktop 15 SP7
- typelib-1_0-Rsvg-2_0 as component of SUSE Linux Enterprise Desktop 15 SP7
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-2-2-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- rsvg-view as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- Summary
- A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
- Remediation
- No remediation text is recorded.
CVE-2026-96889 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitylibrsvg: Use-after-free when XML includes have duplicated entities
The vendor explicitly identifies these products as affected by this CVE.
- glycin-loaders.src as a component of Red Hat Enterprise Linux 10
- librsvg2-devel as a component of Red Hat Enterprise Linux 10
- librsvg2-tools as a component of Red Hat Enterprise Linux 10
- librsvg2.src as a component of Red Hat Enterprise Linux 10
- rsvg-pixbuf-loader as a component of Red Hat Enterprise Linux 10
- librsvg2 as a component of Red Hat Enterprise Linux 6
- librsvg2-devel as a component of Red Hat Enterprise Linux 6
- librsvg2.src as a component of Red Hat Enterprise Linux 6
- librsvg2 as a component of Red Hat Enterprise Linux 7
- librsvg2-devel as a component of Red Hat Enterprise Linux 7
- librsvg2-tools as a component of Red Hat Enterprise Linux 7
- librsvg2.src as a component of Red Hat Enterprise Linux 7
- Summary
- A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
- Remediation
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
Fix not verified01
What, why and how
A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
What
A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
Why
The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.
How
An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.
What
A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
Why
The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.
How
An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.
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 Reference recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.CISA Vulnrichment records proof-of-concept exploitation in its SSVC data. BlackTree has not independently executed or validated exploit material.
- Likely attack path
- local access → Use After Free → execute code or commands in the affected security context
- Attack surface
- Local
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- Required interaction required
- Attack complexity
- Low: no specialised conditions are recorded
- 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-416 ↗
CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing 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.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.- Post-exploitation / living off the land
- After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
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. - Fix not verified
- Affected
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg-2-2 as component of SUSE Linux Enterprise Desktop 15 SP7
- librsvg-devel as component of SUSE Linux Enterprise Desktop 15 SP7
- typelib-1_0-Rsvg-2_0 as component of SUSE Linux Enterprise Desktop 15 SP7
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-2-2-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- rsvg-view as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- librsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- typelib-1_0-Rsvg-2_0 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- librsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- typelib-1_0-Rsvg-2_0 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- librsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- typelib-1_0-Rsvg-2_0 as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- gdk-pixbuf-loader-rsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- librsvg as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- librsvg-2-2 as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- librsvg-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- and 195 more
- Fixed
- No fixed version is explicitly recorded in the structured CVE data.
- Action
- No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 23 Sept 2026 · Last source change 25 Sept 2026, 17:53 UTC · CWE-416 · Use After Free
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-09-24
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-85608
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.CVE.org ↗
- Before
- No public exploit
- After
- Public exploit reference
- ENISA EUVD mappingEUVD-2026-85608 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-85608"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
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.