Security readout for executives and security teams
Plain-English summary
ImageMagick versions before 7.1.2-15 can leak memory when handling an error in ASHLAR image writing. The reported impact is limited to availability, not data theft or code execution. Services that process untrusted images should upgrade because repeated leaks can degrade reliability.
Executive priority
Treat this as a moderate reliability risk. It is not reported as data compromise or code execution, but exposed image-processing services should be patched in normal vulnerability cycles, faster where resource exhaustion would affect customers.
Technical view
CVE-2026-25969 is a CWE-401 memory leak in ImageMagick's coders/ashlar.c. WriteASHLARImage allocates a structure that is not released when an exception occurs. Affected versions are ImageMagick before 7.1.2-15. CVSS 3.1 is 5.3: network reachable, low complexity, no privileges, no user interaction, low availability impact.
Likely exposure
Exposure is likely where ImageMagick before 7.1.2-15 is used in services, pipelines, or applications that process attacker-supplied images and can reach ASHLAR writing behavior.
Exploitation context
The source bundle does not report active exploitation, and KEV is false. The CVSS vector indicates a remotely reachable, low-complexity availability issue, but sources do not provide exploit details or evidence of public weaponization.
Researcher notes
Evidence is limited to the CVE record and GitHub advisory metadata. The affected code path is WriteASHLARImage in coders/ashlar.c, with a memory release failure during exception handling. No source in the bundle confirms exploitation, bypasses, or non-upgrade mitigations.
Mitigation direction
- Upgrade ImageMagick to version 7.1.2-15 or later.
- Prioritize internet-facing image processing services that accept untrusted files.
- Limit or isolate untrusted image conversion until upgraded.
- Monitor memory usage for image conversion workers.
- Check the vendor advisory for deployment-specific guidance.
Validation and detection
- Inventory deployed ImageMagick versions across hosts, containers, and build images.
- Confirm no runtime uses ImageMagick earlier than 7.1.2-15.
- Identify services that process untrusted images with ImageMagick.
- Review memory metrics for abnormal growth during image conversion workloads.
- Verify patched packages are loaded after service restarts or redeployments.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-401: Exact CWE lookup
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Open ATT&CK lookupCVE-2026-25969 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4GitHub_MVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xgm3-v4r9-wfgmCVE reference, GitHub_M · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.