Instability and data modification via out-of-bounds write
Published Oct 12, 2026 · Updated Oct 12, 2026
An out-of-bounds write in Progress MarkLogic Server allows remote authenticated users to destabilize the server or modify limited data. The supplied record locates the flaw in language-processing functionality, but public vendor material does not identify the affected operation or triggering input. Affected releases are 11.x before 11.3.7 and 12.x before 12.1.0; the precise instability mode and required role are undisclosed.
Summary
What happened
An out-of-bounds write in Progress MarkLogic Server allows remote authenticated users to destabilize the server or modify limited data. The supplied record locates the flaw in language-processing functionality, but public vendor material does not identify the affected operation or triggering input. Affected releases are 11.x before 11.3.7 and 12.x before 12.1.0; the precise instability mode and required role are undisclosed.
The record
- CVE
- CVE-2026-85969
- Published
- Oct 12, 2026
- Updated
- Oct 12, 2026
- Vendor
- Progress Software Corporation
- Product
- MarkLogic Server
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 12, 2026CVE publishedPublication date reported by the CVE source.
- Oct 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=11.0.0 <11.3.7
- Affected versionversion=12.0.0 <12.1.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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