CVE-2020-6858: Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection

Q: How do I fix CVE-2020-6858?

styx: upgrade to newer than 0.7.10. Exact commands for each OS are on this page.

Q: Is CVE-2020-6858 being exploited?

CVE-2020-6858 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-6858 affect?

CVE-2020-6858 affects styx. Severity is medium (CVSS 6.5). Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection. This is exploitable if untrusted user input can appear in a response header.

Q: How urgent is CVE-2020-6858?

Priority 45/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2020-6858 is a medium-severity flaw (CVSS 6.5) affecting styx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection. This is exploitable if untrusted user input can appear in a response header.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-74
Published	2020-03-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hotels

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

Am I affected?

Timeline

2020-03-12 14:15 UTCPublished CVE record published
2026-06-17 03:23 UTCUpdated Record last modified

hotels styx UPGRADE

Affected: <= 0.7.10 · 1.0.0 beta1 · 1.0.0 beta2 · 1.0.0 beta3 · 1.0.0 beta4 · 1.0.0 beta5 · 1.0.0 beta6 · 1.0.0 beta7

Fixed in: newer than 0.7.10

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.7.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade styx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade styx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2020-6858?

styx: upgrade to newer than 0.7.10. Exact commands for each OS are on this page.

Is CVE-2020-6858 being exploited?

CVE-2020-6858 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-2020-6858 affect?

CVE-2020-6858 affects styx. Severity is medium (CVSS 6.5). Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection. This is exploitable if untrusted user input can appear in a response header.

How urgent is CVE-2020-6858?

Priority 45/100. Public exploit reference

References

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