PT-2026-41832 · Npm · Exifreader

Yuki Matsuhashi · CVE-2026-8814 · Published 2026-05-19 · Updated 2026-07-23

Positive Technologies (AI Summary)

CVSS v4.0

5.5

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Name of the Vulnerable Software and Affected Versions exifreader versions prior to 4.39.0

Description Improper handling of highly compressed data leads to data amplification when decompressing PNG zTXt metadata without enforcing a maximum decompressed output size. If asynchronous parsing is enabled, a specially crafted PNG file with a highly compressed zTXt chunk can cause the software to materialize an excessively large Comment value in memory.

Recommendations Update to version 4.39.0 or later.

Exploit

Fix

Weakness Enumeration

CWE-409

Related Identifiers

CVE-2026-8814

GHSA-RR89-W3H9-M66J

Affected Products

Exifreader

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8814.json · Exploit
• 🔥 https://security.snyk.io/vuln/SNYK-JS-EXIFREADER-16689340 · Exploit
• https://osv.dev/vulnerability/GHSA-rr89-w3h9-m66j · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8814 · Security Note
• https://osv.dev/vulnerability/CVE-2026-8814 · Vendor Advisory
• https://github.com/mattiasw/ExifReader · Note
• https://github.com/mattiasw/ExifReader/commit/5f116128adc19f674902f8bf582bfe7dd0a36375 · Note
• https://github.com/mattiasw/ExifReader/security/advisories/GHSA-rr89-w3h9-m66j · Note
• https://twitter.com/CVEnew/status/2056670087650963929 · Twitter Post
• https://gist.github.com/yuki-matsuhashi/cad1a45d936062438b4ab24613c34c55 · Note
• https://t.me/cveNotify/219040 · Telegram Post
• https://t.me/CVEtracker/54204 · Telegram Post