CVE-2026-39087: n/a
CVE-2026-39087 is a critical remote code execution vulnerability in the Ntfy ntfy. sh software before version 2. 21. It arises from a flaw in the parseActions function that allows an unauthenticated attacker to execute arbitrary code on the affected system. The vulnerability has a CVSS score of 9. 8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available, and no known exploits in the wild have been reported. Users of affected versions should monitor vendor advisories for updates.
AI Analysis
Technical Summary
This vulnerability in Ntfy ntfy.sh prior to version 2.21 allows remote attackers to execute arbitrary code via the parseActions function. It is classified under CWE-94 (Improper Control of Generation of Code). The CVSS 3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and full impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary code on the vulnerable system, potentially leading to full system compromise. This impacts confidentiality, integrity, and availability of the affected system. No known exploits in the wild have been reported to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider restricting network access to the affected service and monitoring for unusual activity related to parseActions usage.
CVE-2026-39087: n/a
Description
CVE-2026-39087 is a critical remote code execution vulnerability in the Ntfy ntfy. sh software before version 2. 21. It arises from a flaw in the parseActions function that allows an unauthenticated attacker to execute arbitrary code on the affected system. The vulnerability has a CVSS score of 9. 8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available, and no known exploits in the wild have been reported. Users of affected versions should monitor vendor advisories for updates.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Ntfy ntfy.sh prior to version 2.21 allows remote attackers to execute arbitrary code via the parseActions function. It is classified under CWE-94 (Improper Control of Generation of Code). The CVSS 3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and full impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary code on the vulnerable system, potentially leading to full system compromise. This impacts confidentiality, integrity, and availability of the affected system. No known exploits in the wild have been reported to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider restricting network access to the affected service and monitoring for unusual activity related to parseActions usage.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ea9e7887115cfb686fc3b3
Added to database: 4/23/2026, 10:34:32 PM
Last enriched: 4/23/2026, 11:21:26 PM
Last updated: 4/24/2026, 5:20:43 AM
Views: 3
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