PT-2026-29639 · Stb · Stb

D0Razi + 1 · Published 2026-04-01 · Updated 2026-04-30 · CVE-2026-5314

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Nothings stb versions up to 1.26

Description A flaw exists in Nothings stb, specifically within the TTF File Handler component, impacting the stbtt InitFont internal function in the stb truetype.h library. A manipulation of the function can lead to an out-of-bounds read. Remote exploitation is possible, and details of the exploit have been publicly disclosed. Attempts to contact the vendor regarding this issue were unsuccessful.

Recommendations Update Nothings stb to a version newer than 1.26.

Exploit

Fix

Buffer Overflow

Out of bounds Read

Weakness Enumeration

CWE-119

CWE-125

Related Identifiers

CVE-2026-5314

Affected Products

Stb

References · 12

• 🔥 https://gist.github.com/d0razi/cb31a92f3205a4373f19b7da25946848 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5314 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5314 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-5314 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-5314 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5314 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-5314 · Vendor Advisory
• https://vuldb.com/vuln/354646/cti · Note
• https://vuldb.com/vuln/354646 · Note
• https://vuldb.com/submit/780558 · Note
• https://twitter.com/CVEnew/status/2039647738846158858 · Twitter Post
• https://t.me/cveNotify/161620 · Telegram Post