Detections
Analytics

Fedora 42 : cpp-httplib (2026-6ed9c65eaf)

medium Nessus Plugin ID 303248

Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-6ed9c65eaf advisory.

 # Update to 0.37.1 (rbhz#2445943)

 - Fixes Denial of Service via malformed Content-Length header ([CVE-2026-31870](https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-39q5-hh6x-jpxx)
 - Reenables 32-bit build

 # Update to 0.37.0 (rhbz#2441656)

 - Fixes Denial of Service via crafted HTTP POST request ([CVE-2026-29076](https://github.com/yhirose/cpp- httplib/security/advisories/GHSA-qq6v-r583-3h69), rhbz#2445663)

 ## Update to 0.35.0

 - Payload size limit bypass via gzip decompression in ContentReader (streaming) allows oversized request bodies ([CVE-2026-28435](https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-xvfx-w463-6fpp), rhbz#2444638)
 - Default exception handler leaks e.what() to clients via EXCEPTION_WHAT response header ([CVE-2026-28434](https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-8mpw-r4gc-xm7q), rhbz#2444636)

 https://github.com/yhirose/cpp-httplib/compare/v0.32.0...v0.37.0



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected cpp-httplib package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2026-6ed9c65eaf

Plugin Details

Severity: Medium

ID: 303248

File Name: fedora_2026-6ed9c65eaf.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/21/2026

Updated: 3/21/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-28434

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:cpp-httplib, cpe:/o:fedoraproject:fedora:42

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/9/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-28434, CVE-2026-28435, CVE-2026-29076, CVE-2026-31870