CVE-2023-34041: Cloud foundry routing release versions prior to 0.278.0 are vulnerable to abuse of HTTP Hop-by-Hop Headers

Q: How do I fix CVE-2023-34041?

cf-deployment: upgrade to 32.4.0; routing-release: upgrade to 0.278.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-34041 being exploited?

CVE-2023-34041 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-2023-34041 affect?

CVE-2023-34041 affects cf-deployment, routing-release. Severity is medium (CVSS 5.3). Cloud foundry routing release versions prior to 0.278.0 are vulnerable to abuse of HTTP Hop-by-Hop Headers. An unauthenticated attacker can use this vulnerability for headers like B3 or X-B3-SpanID to affect the identification value recorde

Q: How urgent is CVE-2023-34041?

Priority 33/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADEUPGRADE

CVE-2023-34041 is a medium-severity flaw (CVSS 5.3) affecting cf-deployment, routing-release. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cloud foundry routing release versions prior to 0.278.0 are vulnerable to abuse of HTTP Hop-by-Hop Headers. An unauthenticated attacker can use this vulnerability for headers like B3 or X-B3-SpanID to affect the identification value recorded in the logs in foundations.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Published	2023-09-08
Last modified	2026-06-17

Publisher (CNA): VMware · Vendor: cloudfoundry

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

Am I affected?

Timeline

2023-09-08 08:15 UTCPublished CVE record published
2026-06-17 06:02 UTCUpdated Record last modified

cloudfoundry cf-deployment UPGRADE

Affected: < 32.4.0

Fixed in: 32.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cf-deployment || rpm -q cf-deployment || cf-deployment --version

2. UPGRADE to 32.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cf-deployment

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cf-deployment

Note

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

cloudfoundry routing-release UPGRADE

Affected: < 0.278.0

Fixed in: 0.278.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy routing-release || rpm -q routing-release || routing-release --version

2. UPGRADE to 0.278.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade routing-release

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade routing-release

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-2023-34041?

cf-deployment: upgrade to 32.4.0; routing-release: upgrade to 0.278.0. Exact commands for each OS are on this page.

Is CVE-2023-34041 being exploited?

CVE-2023-34041 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-2023-34041 affect?

CVE-2023-34041 affects cf-deployment, routing-release. Severity is medium (CVSS 5.3). Cloud foundry routing release versions prior to 0.278.0 are vulnerable to abuse of HTTP Hop-by-Hop Headers. An unauthenticated attacker can use this vulnerability for headers like B3 or X-B3-SpanID to affect the identification value recorde

How urgent is CVE-2023-34041?

Priority 33/100. Remotely exploitable, no login, no user action

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References

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