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Back to active CVEs
High · CVSS 7.2CVE-2026-86008

Mailu domain managers can take over higher-privileged accountsCVE-2026-86008

Answer in brief

CVE-2026-86008 records a High severity (CVSS 7.2) vulnerability in Mailu domain managers can take over higher-privileged accounts. The current sources do not mark it as known exploited. The current feed maps Mailu/Mailu (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 16, 2026Updated Oct 16, 2026Source checked Oct 16, 2026First seen by HOL Oct 16, 2026Material review Oct 16, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.2
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Mailu/Mailu (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Mailu/Mailugeneric<8577c929b4ade04d3cd4210cf036601abd7935568577c929b4ade04d3cd4210cf036601abd793556

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Mailu/Mailu.
  2. 2Review the reported fix. Update Mailu/Mailu to 8577c929b4ade04d3cd4210cf036601abd793556 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 16, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Mailu is a mail server distributed as a set of Docker images. Prior to 8577c929b4ade04d3cd4210cf036601abd793556, a domain manager targeting an administrative account or another domain manager with greater privileges can reset passwords or obtain tokens for that account. This authorization failure allows a domain manager to take over a higher-privileged account and exercise that account's permissions. This vulnerability is addressed by commit 8577c929b4ade04d3cd4210cf036601abd793556.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Mailu: Domain managers can allow themselves to spoof on other hosted domains they should not controlSame mailu/mailu package
  • Open Zaak: /zaken/_zoek and /enkelvoudiginformatieobjecten/_zoek endpoints do not filter result lists based on authorizations linked to tokenAlso CWE-285
  • Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP Router Advertisement handlingSame generic ecosystem
  • Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP DNS resolverSame generic ecosystem
  • RIOT: Potential integer overflow in nanocoap Block2 handling leading to out-of-bounds memory accessSame generic ecosystem
  • RIOT: Remote Stack Buffer Overflow in ATWINC15x0 driver via unsanitized SSIDSame generic ecosystem

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-285, CWE-269
Source
CVE List V5
Source checked
Oct 16, 2026
References
4 linked sources
Open source record