CVE-2023-26130

HIGH
8.8
CVSS Score
Published: May 30, 2023 at 05:00 AM UTC
Updated: June 17, 2026 at 05:42 AM UTC
2 products affected across 2 vendorsCpp HttplibCpp Httplib

Using yhirose/cpp-httplib by N/A?

Get instant alerts when new vulnerabilities affect yhirose/cpp-httplib - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Versions of the package yhirose/cpp-httplib before 0.12.4 are vulnerable to CRLF Injection when untrusted user input is used to set the content-type header in the HTTP .Patch, .Post, .Put and .Delete requests. This can lead to logical errors and other misbehaviors. **Note:** This issue is present due to an incomplete fix for [CVE-2020-11709](https://security.snyk.io/vuln/SNYK-UNMANAGED-YHIROSECPPHTTPLIB-2366507).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.12.4
Affected range stops below 0.12.4, so it looks safe — our inference, not a vendor statement
v < 0.12.4
Affected range stops below 0.12.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-93CWE-74CWE-77

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card