CVE-2026-123196

HIGHPre-NVD 8.18.1
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-11-05. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-117641 (ENISA EUVD) · GHSA-4q96-hqv8-w3gh (GitHub Security Advisories)Source: ENISA EUVD

8.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Authorizer before 2.4.2 contains a password reset poisoning vulnerability that allows unauthenticated attackers to control emailed link hosts by supplying x-authorizer-url gRPC metadata. Attackers can send this metadata to the gRPC port or a Grpc-Metadata-X-Authorizer-Url header through the REST gateway to capture reset or magic-link tokens and take over accounts.

CVSS v3
8.1
EG Score
8.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100

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)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
29th
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 (8.1): severity, escalated by confirmed exploitation. This CVE's 8.1 is its impact severity (EG Severity), not escalated.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

November 5, 2026

Last Modified

November 9, 2026

Advisory Details (7)

Auto-updated Nov 5, 2026
Patch available. Sources: github, github_commit, github_pr, github_release.
Web page

Authorizer before 2.4.2 Password Reset Poisoning via x-authorizer-url gRPC metadata | Advisories | VulnCheck

https://www.vulncheck.com/advisories/authorizer-before-2.4.2-password-reset-poisoning-via-x-authorizer-url-grpc-metadata
Web page

authorizer/internal/gateway/mount.go at 0bceb94f0ab726d9c396202f4d8fbedee1dc9cab · authorizerdev/authorizer · GitHub

https://github.com/authorizerdev/authorizer/blob/0bceb94f0ab726d9c396202f4d8fbedee1dc9cab/internal/gateway/mount.go#L244-L248
Web page

authorizer/internal/grpcsrv/transport/grpc_metadata.go at 0bceb94f0ab726d9c396202f4d8fbedee1dc9cab · authorizerdev/authorizer · GitHub

https://github.com/authorizerdev/authorizer/blob/0bceb94f0ab726d9c396202f4d8fbedee1dc9cab/internal/grpcsrv/transport/grpc_metadata.go#L40
GitHub release Patch Available

2.4.2

Patch available: authorizerdev/authorizer 2.4.2

https://github.com/authorizerdev/authorizer/releases/tag/2.4.2
GitHub commit Patch Available

commit b5012cbcdc7c (authorizerdev/authorizer)

Patch available: authorizerdev/authorizer 2.4.2 (contains commit b5012cbcdc7c)

https://github.com/authorizerdev/authorizer/commit/b5012cbcdc7c32dcb4bd43179a212055e7fcb863
GitHub pull request Patch Available

security(transport): pin the authorizer host to --url on gRPC and REST

Patch available: authorizerdev/authorizer 2.4.2 (PR #814 merged 2026-10-14)

https://github.com/authorizerdev/authorizer/pull/814
GitHub advisoryMentions a patch (unverified)

Trusted-URL pin (--url) is bypassed on the gRPC and REST gateway transports, allowing host-header-style token poisoning · Advisory · authorizerdev/authorizer · GitHub

https://github.com/authorizerdev/authorizer/security/advisories/GHSA-m46m-j9p5-5j99

Vendor Advisories for CVE-2026-123196(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 14× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-13 16:50 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  4. 2026-11-11 03:49 UTCEchelonGraph re-scored
  5. 2026-11-11 03:49 UTCGHSA enrichmentGHSA-4q96-hqv8-w3gh · GitHub severity HIGH · GitHub CVSS 8.1
  6. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  7. 2026-11-09 18:27 UTCEchelonGraph re-scored
  8. 2026-11-09 18:27 UTCGHSA enrichmentGHSA-4q96-hqv8-w3gh · GitHub severity HIGH · GitHub CVSS 8.1
  9. 2026-11-09 17:45 UTCEchelonGraph re-scored
  10. 2026-11-09 17:45 UTCGHSA enrichmentGHSA-4q96-hqv8-w3gh · GitHub severity HIGH · GitHub CVSS 8.1
  11. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  12. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  13. 2026-11-08 08:50 UTCEchelonGraph re-scored
  14. 2026-11-08 08:50 UTCGHSA enrichmentGHSA-4q96-hqv8-w3gh · GitHub severity HIGH · GitHub CVSS 8.1
  15. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  16. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-11-05 19:27 UTCEchelonGraph re-scored
  18. 2026-11-05 19:04 UTCENISA EUVD ID recordedEUVD-2026-117641 · Source: ENISA EUVD
  19. 2026-11-05 18:19 UTCEchelonGraph re-scoredFirst assessed: 8.1 HIGH
  20. 2026-11-05 18:18 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-123196?
CVE-2026-123196 is a high-severity vulnerability; its CVE record was published on November 5, 2026. Authorizer before 2.4.2 contains a password reset poisoning vulnerability that allows unauthenticated attackers to control emailed link hosts by supplying x-authorizer-url gRPC metadata. Attackers can send this metadata to the gRPC port or a Grpc-Metadata-X-Authorizer-Url header through the REST…
When was CVE-2026-123196 made public?
CVE-2026-123196 was made public on October 14, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on November 5, 2026. EchelonGraph's copy of the record carries a last-modified date of November 9, 2026; the record at its source may have been updated since.
Is CVE-2026-123196 actively exploited?
CVE-2026-123196 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-123196?
CVE-2026-123196 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-123196?
A fix for CVE-2026-123196 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-123196 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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