CVE-2026-49233: Routinator does not properly check the module component of rsync URIs, which are used to create the file syste

Q: How do I fix CVE-2026-49233?

routinator: upgrade to 0.15.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-49233 being exploited?

CVE-2026-49233 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-2026-49233 affect?

CVE-2026-49233 affects routinator. Severity is high (CVSS 7.5). Routinator does not properly check the module component of rsync URIs, which are used to create the file system paths for the Routinator cache. This allows for path traversal by having a module name containing .., potentially providing an a

Q: How urgent is CVE-2026-49233?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2026-49233 is a high-severity flaw (CVSS 7.5) affecting routinator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Routinator does not properly check the module component of rsync URIs, which are used to create the file system paths for the Routinator cache. This allows for path traversal by having a module name containing .., potentially providing an attacker access to the entire Routinator rsync cache.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-06-08
Last modified	2026-07-23

Publisher (CNA): NLnet Labs · Vendor: nlnetlabs

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-08 15:16 UTCPublished CVE record published
2026-07-23 07:10 UTCUpdated Record last modified

nlnetlabs routinator UPGRADE

Affected: < 0.15.2

Fixed in: 0.15.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.15.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade routinator

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-2026-49233?

routinator: upgrade to 0.15.2. Exact commands for each OS are on this page.

Is CVE-2026-49233 being exploited?

CVE-2026-49233 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-2026-49233 affect?

CVE-2026-49233 affects routinator. Severity is high (CVSS 7.5). Routinator does not properly check the module component of rsync URIs, which are used to create the file system paths for the Routinator cache. This allows for path traversal by having a module name containing .., potentially providing an a

How urgent is CVE-2026-49233?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-49235 HIGH 7.5 UPGRADE When Routinator encounters a file via RRDP using a specifically crafted Document Type Definition, Routinator c
CVE-2026-49234 HIGH 7.5 UPGRADE When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endp

References

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