CVE-2026-102521— lib0 `readFromDataView` out-of-bounds read
Quick assessment
Affected
dmonad lib0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
The decoder in 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 exampl
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I. Basic Information for CVE-2026-102521
Vulnerability Information
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Vulnerability Title
lib0 `readFromDataView` out-of-bounds read
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-102521
| # | POC Description | Source Link | Shenlong Link |
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Other References for CVE-2026-102521 (2)
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https://github.com/dmonad/lib0/security/advisories/GHSA-g75x-89c3-rvmr x_refsource_CONFIRM
IV. Related Vulnerabilities
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V. Comments for CVE-2026-102521
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