authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an unauthenticated attacker can submit a malformed SAML message to an authentik deployment using SAML in either the identity-provider or SAML source role. The message can stop the worker handling /application/saml/* or /source/saml/*, causing the requests assigned to that worker to fail. Worker process termination and automatic restart do not destroy database-backed sessions, but continued malicious messages can cause a sustained share of legitimate traffic to fail. Other protocol implementations are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.
CVE-2026-94613
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (50th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-86122 (ENISA EUVD)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
The CVE record names the fixed release — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 49EG Risk 49/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.6% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.6%
- EPSS %ILE
- 50th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
September 24, 2026
Last Modified
September 29, 2026
Advisory Details (10)
Auto-updated Sep 24, 2026commit a029f5372295 (goauthentik/authentik)
Fix landed in goauthentik/authentik commit a029f5372295 — awaiting tagged release
https://github.com/goauthentik/authentik/commit/a029f5372295bfeb1e334855f78601681cdc9a2dcommit 732adad26bb9 (goauthentik/authentik)
Fix landed in goauthentik/authentik commit 732adad26bb9 — awaiting tagged release
https://github.com/goauthentik/authentik/commit/732adad26bb97361b6bf25ef138df5c16471ba1fcommit 4cf2f803b1c2 (goauthentik/authentik)
Fix landed in goauthentik/authentik commit 4cf2f803b1c2 — awaiting tagged release
https://github.com/goauthentik/authentik/commit/4cf2f803b1c2ef38c224eead375fd057a10ee8accommit 03d19d63b8d8 (goauthentik/authentik)
Fix landed in goauthentik/authentik commit 03d19d63b8d8 — awaiting tagged release
https://github.com/goauthentik/authentik/commit/03d19d63b8d8dd7bc3de7cf6e57c6df341a9fc86security: automated internal backport of patch 2190-libxml2-doctype.sec.patch to authentik-main
Fix merged in goauthentik/authentik PR #25974 on 2026-09-09 — awaiting tagged release
https://github.com/goauthentik/authentik/pull/25974security: automated internal backport of patch 2190-libxml2-doctype.sec.patch to authentik-2026.8
Fix merged in goauthentik/authentik PR #25969 on 2026-09-09 — awaiting tagged release
https://github.com/goauthentik/authentik/pull/25969security: automated internal backport of patch 2190-libxml2-doctype.sec.patch to authentik-2026.5
Fix merged in goauthentik/authentik PR #25964 on 2026-09-09 — awaiting tagged release
https://github.com/goauthentik/authentik/pull/25964security: automated internal backport of patch 2190-libxml2-doctype.sec.patch to authentik-2026.2
Fix merged in goauthentik/authentik PR #25959 on 2026-09-09 — awaiting tagged release
https://github.com/goauthentik/authentik/pull/25959Denial of Service via Malformed SAML Messages · Advisory · goauthentik/authentik · GitHub
https://github.com/goauthentik/authentik/security/advisories/GHSA-cxwx-9x59-28qmWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 47× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 67 is merged into the row it repeats.
- 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
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- 2026-10-27 20:00 UTCEG score recompute
- 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-25 13:49 UTCEG score recompute
- 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.6% · 50th percentile
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- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.6% · 50th percentile
- 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-20 06:50 UTCEG score recompute
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-18 02:58 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
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- 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
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- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-13 04:17 UTCEG score recompute
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- 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-12 14:41 UTCEG score recompute
- 2026-10-11 19:11 UTCEG score recompute
- 2026-10-11 16:27 UTCEG score recompute
- 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-11 13:40 UTCEG score recompute
- 2026-10-11 03:46 UTCEG score recompute
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-10 01:33 UTCEG score recompute
- 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-08 22:59 UTCEG score recompute
- 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-08 09:56 UTCEG score recompute
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 49th percentile
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- 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-06 05:33 UTCEG score recompute
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- 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-04 01:17 UTCEG score recompute
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- 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-30 18:55 UTCEG score recompute
- 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-29 16:47 UTCEG score recompute
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- 2026-09-28 20:07 UTCEG score recompute
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-27 17:57 UTCEG score recompute
- 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-27 04:53 UTCEG score recompute
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-26 02:44 UTCEG score recompute
- 2026-09-24 17:33 UTCEG score recompute
- 2026-09-24 16:27 UTCEG score recomputeFirst assessed: 7.5 HIGH
- 2026-09-24 16:26 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
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Dependency Blast Radius
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