CVE-2026-44372: Nitro is a next generation server toolkit

Q: How do I fix CVE-2026-44372?

nitro: upgrade to 2.13.4, 3.0.260429. Exact commands for each OS are on this page.

Q: Is CVE-2026-44372 being exploited?

CVE-2026-44372 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-2026-44372 affect?

CVE-2026-44372 affects nitro. Severity is medium (CVSS 6.1). Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is f

Q: How urgent is CVE-2026-44372?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2026-44372 is a medium-severity flaw (CVSS 6.1) affecting nitro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is fixed in 3.0.260429-beta.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-601
Published	2026-05-13
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: nitro

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-13 21:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

nitro nitro UPGRADE

Affected: < 2.13.4 · > 2.13.4 and < 3.0.260429

Fixed in: 2.13.4, 3.0.260429

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.13.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nitro

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-2026-44372?

nitro: upgrade to 2.13.4, 3.0.260429. Exact commands for each OS are on this page.

Is CVE-2026-44372 being exploited?

CVE-2026-44372 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-2026-44372 affect?

CVE-2026-44372 affects nitro. Severity is medium (CVSS 6.1). Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is f

How urgent is CVE-2026-44372?

Priority 26/100. No elevated risk signals yet.

Related CVEs

CVE-2026-44373 MEDIUM 5.3 UPGRADE Nitro is a next generation server toolkit

References

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