Is there a public exploit for CVE-2026-58496?

No public exploit for CVE-2026-58496 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-58496?

CVE-2026-58496 scores CVSS 4.3 (v3.1), rated medium.

4.3 Medium

Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine.

CVE-2026-58496

Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine. Prior to 1.0.7, the SFNT/TTF font loader's SfntLoader::gen function in tvgSfntLoader.cpp reads data[0] through data[3] to identify the font type without first checking that the input buffer contains at least four bytes. Loading an undersized font directly from memory through public APIs such as tvg::Text::load causes an out-of-bounds read. Loading through a file path using mmap can mask the read because of page alignment; the memory-loading API directly exposes it. Depending on memory layout, a malformed short font may crash the consuming application or disclose adjacent heap memory. This issue is fixed in version 1.0.7.

Assessment

CVSS: 4.3 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 27 October 2026
Last updated: 2 November 2026
Weakness: CWE-125
Assigner: security-advisories@github.com

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

At the source

References

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