CVE-2026-54919: cpp-httplib from 0.31.0 (inclusive), before 0.47.0 (exclusive), >= 0.31.0, < 0.47.0

CVE-2026-54919. CVSS 3.1 base score 7.4 (HIGH, Vendor/CNA). EPSS 0.00264 (percentile 0.17385), scored 24-Oct-2026.

Affected technology

cpp-httplib · from 0.31.0 (inclusive), before 0.47.0 (exclusive)
yhirose

cpp-httplib · >= 0.31.0, < 0.47.0
yhirose

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.4/10) rates confidentiality and integrity impact as high; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-295
CCR priority: 29.7 /100 (P4)
CVSS 3.1: 7.4 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · Vendor/CNA
EPSS: 0.00264 · percentile 0.18132 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-54919.html