vciy

CVE-2025-55001

INDEX BUILT · 2026-09-20

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OpenBao LDAP MFA Enforcement Bypass When Using Username As Alias

CVE-2025-550014 of 4 sources documented this
18

rank 18 = 0 + 16 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00221  ·  without this subject the record ranks 18

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.5, from the CNA  ·  without this subject the record ranks 2

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 18

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 16

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 18

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$9,720over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$9,720 = $4.99M incident cost x 0.8814887365328109 exposure x 0.00221 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00221EPSSNOT IN KEVas of 2026-09-20
Severity6.5 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-08-09, 335 days at 0.00, as of 2026-07-10. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · high privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality and integrity lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-156 Improper Neutralization of Whitespacereceipt
Published consequencesCWE-156: Integrity: Unexpected State[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchopenbao 2.3.2receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA6.5 MEDIUMreceipt
Exploit probability0.00221 · top 87% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes18 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productopenbaoreceipt
Published rangesopenbao < 2.3.2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Network requestrequires high privilegesopenbaoCWE-156 weaknessConfidentiality and integrity lossC:H / I:Hexploits CWE-156data compromise

What it is stated by the CNA

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao allowed the assignment of policies and MFA attribution based upon entity aliases, chosen by the underlying auth method. When the username_as_alias=true parameter in the LDAP auth method was in use, the caller-supplied username was used verbatim without normalization, allowing an attacker to bypass alias-specific MFA requirements. This issue was fixed in version 2.3.2. To work around this, remove all usage of the username_as_alias=true parameter and update any entity aliases accordingly. receipt

NVD's analysis a second authority

weakness
CWE-156
affected versions
openbao < 2.3.2
also scored by
[email protected] 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

check it yourself github.com github.com discuss.hashicorp.com receipt

Movement the material steps

9 Aug 20250.00015
15 Jun 20260.00206 · scoring model v2026.06.15
10 Jul 20260.00221
Show all 18 observations
9 Aug 20250.00015
13 Aug 20250.00016
15 Aug 20250.00021
10 Sep 20250.00023
16 Oct 20250.00024
9 Dec 20250.00029
5 Jan 20260.00025
6 Jan 20260.00024
17 Jan 20260.00029
5 Mar 20260.00033
15 Mar 20260.00031
14 Apr 20260.00034
25 Apr 20260.0005
5 May 20260.00056
26 May 20260.0006
5 Jun 20260.00182
15 Jun 20260.00206
10 Jul 20260.00221

18 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00221Published2025-08-09Index as of2026-07-10

The record had been public for 11 months when this index was last written.

Published 2025-08-09 receipt · Index as of 2026-07-10 derived

Siblings and hubs

Records related to this one

Its defect family

openbao

Of the 2 records in this family, this is the only one whose title names ldap mfa enforcement.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

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