CVE-2023-29019: @fastify/passport is a port of passport authentication library for the Fastify ecosystem

Q: How do I fix CVE-2023-29019?

passport: upgrade to 1.1.0, 2.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-29019 being exploited?

CVE-2023-29019 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-2023-29019 affect?

CVE-2023-29019 affects passport. Severity is high (CVSS 8.1). @fastify/passport is a port of passport authentication library for the Fastify ecosystem. Applications using `@fastify/passport` in affected versions for user authentication, in combination with `@fastify/session` as the underlying session

This month

HIGH 8.1UPGRADE

CVE-2023-29019 is a high-severity flaw (CVSS 8.1) affecting passport. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

@fastify/passport is a port of passport authentication library for the Fastify ecosystem. Applications using `@fastify/passport` in affected versions for user authentication, in combination with `@fastify/session` as the underlying session management mechanism, are vulnerable to session fixation attacks from network and same-site attackers. fastify applications rely on the `@fastify/passport` library for user authentication. The login and user va

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-384
Published	2023-04-21
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-04-21 23:15 UTCPublished CVE record published
2026-06-17 05:49 UTCUpdated Record last modified

fastify passport UPGRADE

Affected: < 1.1.0 · >= 2.0.0 and < 2.3.0

Fixed in: 1.1.0, 2.3.0

Safe to downgrade to: a release before 2.0.0

1. Check installed version

npm ls passport

2. UPGRADE to 1.1.0

npm install passport@">=1.1.0"

3. If no update is available yet, DOWNGRADE to a release before 2.0.0

npm view passport versions npm install passport@"<2.0.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-29019?

passport: upgrade to 1.1.0, 2.3.0. Exact commands for each OS are on this page.

Is CVE-2023-29019 being exploited?

CVE-2023-29019 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-2023-29019 affect?

CVE-2023-29019 affects passport. Severity is high (CVSS 8.1). @fastify/passport is a port of passport authentication library for the Fastify ecosystem. Applications using `@fastify/passport` in affected versions for user authentication, in combination with `@fastify/session` as the underlying session

How urgent is CVE-2023-29019?

Priority 42/100. High severity

Related CVEs

CVE-2026-39976 HIGH 7.1 UPGRADE Laravel Passport provides OAuth2 server support to Laravel
CVE-2023-29020 MEDIUM 6.5 UPGRADE @fastify/passport is a port of passport authentication library for the Fastify ecosystem
CVE-2022-25896 MEDIUM 4.8 UPGRADE This affects the package passport before 0.6.0

References

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