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92181 markdown EUVDEUVD-2026-72359

| CVE-2026-86303 MEDIUM
Out-of-bounds Read (CWE-125)
2026-09-07 VulDB GHSA-jvfg-5f69-7f59
6.9
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.5 MEDIUM

OOB read in a network-reachable parser; no authentication or interaction needed; read-only primitive means no integrity impact, only potential memory disclosure and crash.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Metadata Corrected
Sep 07, 2026 - 13:40 vuln.today
tag: Buffer Overflow removed
Source Code Evidence Fetched
Sep 07, 2026 - 13:03 vuln.today
Analysis Generated
Sep 07, 2026 - 13:03 vuln.today

DescriptionCVE.org

A vulnerability was determined in 92181 markdown up to 058cab0cb7fb245a0ccc6b8446963ff8d573558f. Affected by this issue is the function lds of the file md.c. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. This patch is called c000d2f9cf390c315378d3717cf20911cf3e80a6. A patch should be applied to remediate this issue.

AnalysisAI

Out-of-bounds read in the 92181 markdown C library's lds() function allows remote unauthenticated attackers to read memory beyond the intended buffer by supplying crafted markdown input. The flaw exists in md.c prior to commit c000d2f9cf390c315378d3717cf20911cf3e80a6, where the lds() function iterated over space characters without enforcing an end-of-buffer boundary. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation No special configuration or authentication is required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 6.9 with low impacts across VC, VI, and VA is consistent with a read-only memory access violation in a parsing library. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply patch commit c000d2f9cf390c315378d3717cf20911cf3e80a6, available via GitHub PR#2 at https://github.com/92181/markdown/pull/2. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-72359 vulnerability details – vuln.today

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