CVE-2026-102521: CWE-125: Out-of-bounds Read in dmonad lib0
The decoder in `readFromDataView` in lib0 before 0.2.119 can be tricked into reading more than it should from a buffer. The vulnerability allows reading past the decoders' view, thus exposing adjacent process memory. This can be anything that is currently in the head, for example credentials or logs. This is similar to but different from GHSA-r5c8-rf4w-qrq8.
AI Analysis
Technical Summary
The vulnerability exists in the `readFromDataView` decoder function in dmonad's lib0 library before version 0.2.119. The decoder can be manipulated to read beyond the allocated buffer, resulting in an out-of-bounds read (CWE-125). This allows an attacker to access adjacent memory regions that may contain sensitive information like credentials or logs. The CVSS v3.1 score is 8.6 (high), reflecting network attack vector, low attack complexity, no privileges or user interaction required, and a confidentiality impact rated as high. There is no known exploit in the wild and no vendor advisory or patch information is provided.
Potential Impact
The vulnerability allows an attacker to read memory beyond the intended buffer boundary, potentially exposing sensitive information such as credentials or logs. There is no impact on integrity or availability. The confidentiality breach could lead to information disclosure risks depending on what adjacent memory contains.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. Avoid using affected versions (<=0.2.118) if possible until a fix is available.
CVE-2026-102521: CWE-125: Out-of-bounds Read in dmonad lib0
Description
The decoder in `readFromDataView` in lib0 before 0.2.119 can be tricked into reading more than it should from a buffer. The vulnerability allows reading past the decoders' view, thus exposing adjacent process memory. This can be anything that is currently in the head, for example credentials or logs. This is similar to but different from GHSA-r5c8-rf4w-qrq8.
CVSS v3.1
Score 8.6high
Affected software
dmonad
lib0
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists in the `readFromDataView` decoder function in dmonad's lib0 library before version 0.2.119. The decoder can be manipulated to read beyond the allocated buffer, resulting in an out-of-bounds read (CWE-125). This allows an attacker to access adjacent memory regions that may contain sensitive information like credentials or logs. The CVSS v3.1 score is 8.6 (high), reflecting network attack vector, low attack complexity, no privileges or user interaction required, and a confidentiality impact rated as high. There is no known exploit in the wild and no vendor advisory or patch information is provided.
Potential Impact
The vulnerability allows an attacker to read memory beyond the intended buffer boundary, potentially exposing sensitive information such as credentials or logs. There is no impact on integrity or availability. The confidentiality breach could lead to information disclosure risks depending on what adjacent memory contains.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. Avoid using affected versions (<=0.2.118) if possible until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-09-29T13:00:21.387Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abbbe2df7a7c541067091ce
Added to database: 09/29/2026, 13:33:33 UTC
Last enriched: 09/29/2026, 13:47:44 UTC
Last updated: 09/29/2026, 18:20:13 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.