Bug 2570620 (CVE-2026-125748)

Summary: CVE-2026-125748 parabol: parabol: Unauthorized cross-organization reaction tampering via GraphQL mutation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Parabol. An authenticated remote attacker can tamper with data across tenant boundaries due to missing authorization checks in the addReactjiToReactable GraphQL mutation. By pairing their own meeting identifier with an item identifier belonging to another organization, the attacker can add or remove emoji reactions on that organization's reflections, comments, or team prompt responses.
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Description OSIDB Bzimport 2026-11-10 20:11:13 UTC 
Parabol before 15.21.2 contains a missing authorization vulnerability in the addReactjiToReactable GraphQL mutation that allows authenticated users to tamper with reactions on other organizations' content. Attackers can pair their own meetingId with a reactableId of another tenant's reflection, comment, or sequential team prompt response to add or remove their reactions.