CVE-2025-52553

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 67% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

authentik is an open-source identity provider. After authorizing access to a RAC endpoint, authentik creates a token which is used for a single connection and is sent to the client in the URL. This token is intended to only be valid for the session of the user who authorized the connection, however this check is missing in versions prior to 2025.6.3 and 2025.4.3. When, for example, using RAC during a screenshare, a malicious user could access the same session by copying the URL from the shown browser. authentik 2025.4.3 and 2025.6.3 fix this issue. As a workaround, it is recommended to decrease the duration a token is valid for (in the RAC Provider settings, set Connection expiry to minutes=5 for example). The maintainers of authentik also recommend enabling the option Delete authorization on disconnect.

CVSS v3
9.6
EG Score
9.6(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

June 27, 2025

Last Modified

August 21, 2025

Advisory Details (4)

Auto-updated Jul 14, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Insufficient Session verification for Remote Access Control endpoint access · Advisory · goauthentik/authentik · GitHub

https://github.com/goauthentik/authentik/security/advisories/GHSA-wr3v-9p2c-chx7
github_commit

commit 7100d3c67418 (goauthentik/authentik)

Fix landed in goauthentik/authentik commit 7100d3c67418 — awaiting tagged release

https://github.com/goauthentik/authentik/commit/7100d3c6741853f1cfe3ea2073ba01823ab55caa
github_commit

commit 65373ab21711 (goauthentik/authentik)

Fix landed in goauthentik/authentik commit 65373ab21711 — awaiting tagged release

https://github.com/goauthentik/authentik/commit/65373ab21711d58147b5cb9276c5b5876baaa5eb
github_commit

commit 0e07414e9739 (goauthentik/authentik)

Fix landed in goauthentik/authentik commit 0e07414e9739 — awaiting tagged release

https://github.com/goauthentik/authentik/commit/0e07414e9739b318cff9401a413a5fe849545325

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 40× 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.

  1. 2026-07-30 16:27 UTCEPSS rescore
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  7. 2026-07-24 02:11 UTCOSV refresh
  8. 2026-07-23 14:18 UTCEPSS rescore
  9. 2026-07-23 02:58 UTCEG score recompute
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  1. 2026-07-12 05:46 UTCEPSS rescore
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  5. 2026-07-08 15:15 UTCEPSS rescore
  6. 2026-07-07 13:45 UTCEPSS rescore
  7. 2026-07-06 20:34 UTCOSV refresh
  8. 2026-07-06 16:27 UTCEPSS rescore
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  37. 2026-06-18 08:43 UTCOSV refresh
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  53. 2026-06-07 15:24 UTCEPSS rescore
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  55. 2026-06-06 13:47 UTCEPSS rescore
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  69. 2026-05-31 00:16 UTCEPSS rescore
  70. 2026-05-31 00:16 UTCEPSS rescore
  71. 2026-05-30 02:52 UTCEG score recompute
  72. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-52553?
CVE-2025-52553 is a critical vulnerability published on June 27, 2025. authentik is an open-source identity provider. After authorizing access to a RAC endpoint, authentik creates a token which is used for a single connection and is sent to the client in the URL. This token is intended to only be valid for the session of the user who authorized the connection, however…
When was CVE-2025-52553 disclosed?
CVE-2025-52553 was first published in the National Vulnerability Database on June 27, 2025, with the most recent update on August 21, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-52553 actively exploited?
CVE-2025-52553 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.8% of all scored CVEs.
What is the CVSS score of CVE-2025-52553?
CVE-2025-52553 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2025-52553?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-52553, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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