CVE-2026-40930

Katalog CVE

CVSS 5.4 · Medium EPSS 0,36%

Kerentanan Interpretation Conflict. Skor CVSS 3.1 5.4 (Medium) menurut github.com.

Deskripsi (NVD)

LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.

Rincian

Terbit di NVD

4 Juni 2026

Terakhir diubah

22 Juli 2026

Status NVD

Awaiting Analysis

CVSS 3.1

5.4 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-436: Interpretation Conflict

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4
• https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x
• http://www.openwall.com/lists/oss-security/2026/05/15/21