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  4. CVE 2026 111367 billionmail through 49 forgeable jwts via default
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-111367

BillionMail through 4.9 Forgeable JWTs via Default Signing KeyCVE-2026-111367

Answer in brief

CVE-2026-111367 records a Medium severity (CVSS 6.9) vulnerability in BillionMail through 4.9 Forgeable JWTs via Default Signing Key. The current sources do not mark it as known exploited. The current feed maps aaPanel/BillionMail (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 15, 2026Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.9. 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 aaPanel/BillionMail (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
aaPanel/BillionMailgeneric>=0 <=4.9Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for aaPanel/BillionMail.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 15, 2026

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

  2. Source modified

    Oct 15, 2026

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

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencehackmd.io
  • Source referencevulncheck.com
Upstream source description

BillionMail through 4.9 contains a hard-coded cryptographic key vulnerability that allows unauthenticated attackers to forge unsubscribe and subscribe-confirm JWTs by computing the key from shipped configuration constants. Attackers can submit forged tokens to /api/unsubscribe, /api/unsubscribe_new, or /api/subscribe/confirm to deactivate any contact or force confirmed subscriptions.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • MP4v2 through 2.1.3 Heap Out-of-Bounds Read via MP4File::GetChaptersSame generic ecosystem
  • libical through 4.0.6 Heap Out-of-Bounds Read via icalvalue_decode_ical_stringSame generic ecosystem
  • libmodplug through 0.8.9.1 Heap Out-of-Bounds Write via CSoundFile::ReadDSMSame generic ecosystem
  • libmodplug through 0.8.9.1 Heap Out-of-Bounds Read via CSoundFile::ReadAMS2Same generic ecosystem
  • LibRaw through 0.22.2 Heap Out-of-Bounds Read via parseNikonMakernote ShotInfoSame generic ecosystem
  • unarr through 1.1.1 Off-by-One Heap Buffer Overflow via tar_get_nameSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-1394
Source
CVE List V5
Source checked
Oct 15, 2026
References
5 linked sources
Open source record