CVE-2024-52871: In Flagsmith before 2.134.1, it is possible to bypass the ALLOW_REGISTRATION_WITHOUT_INVITE setting.

Q: How do I fix CVE-2024-52871?

flagsmith: upgrade to 2.134.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-52871 being exploited?

CVE-2024-52871 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-2024-52871 affect?

CVE-2024-52871 affects flagsmith. Severity is high (CVSS 7.5). In Flagsmith before 2.134.1, it is possible to bypass the ALLOW_REGISTRATION_WITHOUT_INVITE setting.

Q: How urgent is CVE-2024-52871?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2024-52871 is a high-severity flaw (CVSS 7.5) affecting flagsmith. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Flagsmith before 2.134.1, it is possible to bypass the ALLOW_REGISTRATION_WITHOUT_INVITE setting.

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 64%)
CISA exploited list	No
Published	2024-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: flagsmith

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

Am I affected?

Timeline

2024-11-17 04:15 UTCPublished CVE record published
2026-06-17 08:07 UTCUpdated Record last modified

flagsmith flagsmith UPGRADE

Affected: < 2.134.1

Fixed in: 2.134.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.134.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flagsmith

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-2024-52871?

flagsmith: upgrade to 2.134.1. Exact commands for each OS are on this page.

Is CVE-2024-52871 being exploited?

CVE-2024-52871 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-2024-52871 affect?

CVE-2024-52871 affects flagsmith. Severity is high (CVSS 7.5). In Flagsmith before 2.134.1, it is possible to bypass the ALLOW_REGISTRATION_WITHOUT_INVITE setting.

How urgent is CVE-2024-52871?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-52872 HIGH 7.5 UPGRADE In Flagsmith before 2.134.1, the get_document endpoint is not correctly protected by permissions.

References

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