GHSA-77fj-vx54-gvh7

Go Markdown has an Out-of-bounds Read in SmartypantsRenderer

High highest severity reported · also known as CVE-2026-40890

catalog tools match this advisory

ship the vulnerable code in their release binary (Go tools analyzed with govulncheck)

in the CISA KEV catalog

0.3%

EPSS for CVE-2026-40890, percentile 28

Catalog tools matching GHSA-77fj-vx54-gvh7

Tool	Version scanned	Package	Fixed in	Released binary	Declared in or found in	Dispute
bomber Software Composition Analysis (SCA)	v0.5.1	`github.com/gomarkdown/markdown@v0.0.0-20240730141124-034f12af3bf6` golang	0.0.0-20260411013819-759bbc3e3207	vulnerable code in binary	`go.mod`	Dispute
vet Software Composition Analysis (SCA)	v1.20.0	`github.com/gomarkdown/markdown@v0.0.0-20260217112301-37c66b85d6ab` golang	0.0.0-20260411013819-759bbc3e3207	vulnerable code in binary	`go.mod`	Dispute

Vulnerabilities are known advisories that Grype matches against the dependencies declared in each project's release source (manifests and lockfiles, including development and build dependencies). A match does not mean the tool is exploitable: the vulnerable code may be unused, test-only, or not shipped in the released binary. KEV: listed in the CISA Known Exploited Vulnerabilities catalog. EPSS: FIRST's estimated probability of exploitation in the next 30 days. Both describe the vulnerability in general, not its exploitability through this tool; a match in a workflow file refers to a GitHub Action, not to shipped code. Released binary is only analyzed for Go tools with a Linux release binary; other tools show not analyzed.

Advisory sources

GitHub advisory GHSA-77fj-vx54-gvh7 · NVD CVE-2026-40890 · OSV GHSA-77fj-vx54-gvh7

Grype data sources: https://github.com/advisories/GHSA-77fj-vx54-gvh7