goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a system with the recovery flow described above is susceptible to having their username/email revealed as existing. An attacker can easily enumerate and check users' existence using the recovery flow, as a clear message is shown when a user doesn't exist. Depending on configuration this can either be done by username, email, or both. This issue has been addressed in versions 2023.5.6 and 2023.6.2. Users are advised to upgrade. There are no known workarounds for this issue.
CVE-2023-39522
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 28% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 40.2%
- KEV
- Not listed
Published
August 29, 2023
Last Modified
November 21, 2024
References (4)
- security-advisories@githubhttps://github.com/goauthentik/authentik/commit/aa874dd92a770d5f8cd8f265b7cdd31cd73a4599
- security-advisories@githubhttps://github.com/goauthentik/authentik/security/advisories/GHSA-vmf9-6pcv-xr87
- af854a3a-2127-422b-91ae-364da2661108https://github.com/goauthentik/authentik/commit/aa874dd92a770d5f8cd8f265b7cdd31cd73a4599
- af854a3a-2127-422b-91ae-364da2661108https://github.com/goauthentik/authentik/security/advisories/GHSA-vmf9-6pcv-xr87
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @goauthentik/api | — | 2023.5.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 49× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-24 18:35 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-203
Frequently asked(5)
What is CVE-2023-39522?
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Dependency Blast Radius
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