CVE-2026-44787 (GCVE-0-2026-44787)
Vulnerability from cvelistv5 – Published: 2026-07-09 22:03 – Updated: 2026-07-10 20:59
VLAI
EPSS
VEX
Title
Discourse: Signup-time primary_group_id assignment grants whisperer access
Summary
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 20:53 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/discourse/discourse/security/a… | x_refsource_CONFIRM |
| https://github.com/discourse/discourse/commit/012… | x_refsource_MISC |
| https://github.com/discourse/discourse/commit/0f5… | x_refsource_MISC |
| https://github.com/discourse/discourse/commit/541… | x_refsource_MISC |
| https://github.com/discourse/discourse/commit/6fc… | x_refsource_MISC |
| https://github.com/discourse/discourse/releases/t… | x_refsource_MISC |
| https://github.com/discourse/discourse/releases/t… | x_refsource_MISC |
| https://github.com/discourse/discourse/releases/t… | x_refsource_MISC |
| https://github.com/discourse/discourse/releases/t… | x_refsource_MISC |
Impacted products
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},
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"discovery": "UNKNOWN"
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vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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