CVE-2023-26148: All versions of the package ithewei/libhv are vulnerable to CRLF Injection when untrusted user input is used t

Routine

MEDIUM 5.4MITIGATE

CVE-2023-26148 is a medium-severity flaw (CVSS 5.4) affecting libhv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of the package ithewei/libhv are vulnerable to CRLF Injection when untrusted user input is used to set request headers. An attacker can add the \r\n (carriage return line feeds) characters and inject additional headers in the request sent.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-93, CWE-74
Published	2023-09-29
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: ithewei

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-09-29 05:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

ithewei libhv MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libhv || rpm -q libhv || libhv --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-26148?

libhv: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26148 being exploited?

CVE-2023-26148 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-26148 affect?

CVE-2023-26148 affects libhv. Severity is medium (CVSS 5.4). All versions of the package ithewei/libhv are vulnerable to CRLF Injection when untrusted user input is used to set request headers. An attacker can add the \r\n (carriage return line feeds) characters and inject additional headers in the r

How urgent is CVE-2023-26148?

Priority 33/100. Public exploit reference

Related CVEs

CVE-2023-26147 MEDIUM 5.3 MITIGATE All versions of the package ithewei/libhv are vulnerable to HTTP Response Splitting when untrusted user input
CVE-2023-26146 MEDIUM 6.1 MITIGATE All versions of the package ithewei/libhv are vulnerable to Cross-site Scripting (XSS) such that when a file w

References

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