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CVE-2026-86535

Apache Thrift: A JSON member name can stall the Node server's event loop indefinitely

HIGH
8.7
CVSS Score
Published: October 2, 2026 at 11:38 AM UTC
Updated: October 2, 2026 at 06:17 PM UTC
1 product affected across 1 vendorThrift

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Severity
HIGH8.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Loop with unreachable exit condition ('infinite loop'), Improperly controlled modification of object prototype attributes ('prototype pollution') vulnerability in Apache Thrift NodeJS bindings with TJSONProtocol. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Thrift· Apachepypi
60%
v < 0.25.0
Affected range stops below 0.25.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/94cvvzzl0rh707bn2j4zt844v547508g

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHapache
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-835CWE-1321

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