Immediate
Before a patch is released, reduce exposure immediately and only allow trusted sources to reach the affected service.
root@hackertop:~/vulnfeed/CVE-2026-47074#
CVE-2026-47074
LOW
CVE
⚠ Unpatched · Zero-day◉ PoC 公开
Lifecycle 4/7
ex-aws ex_aws_sns up to 2.3.4 PublicKeyCache lib/ex_aws/sns.ex SigningCertURL certificate validation
LIFECYCLE
3.6
CVSS
Vulnerability Description
A vulnerability was found in ex-aws ex_aws_sns up to 2.3.4. It has been rated as problematic. This issue affects an unknown code block in the library lib/ex_aws/sns.ex of the component PublicKeyCache Module. Upgrading to version 2.3.5 eliminates this vulnerability. Applying the patch 1853d280b152d10384a1e21a22cf22152a60be48 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Root Cause Analysis
The manipulation of the argument SigningCertURL with an unknown input leads to a unknown weakness. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate.
Impact: Impacted is integrity.
Countermeasure: Upgrading to version 2.3.5 eliminates this vulnerability. Applying the patch 1853d280b152d10384a1e21a22cf22152a60be48 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Impact: Impacted is integrity.
Countermeasure: Upgrading to version 2.3.5 eliminates this vulnerability. Applying the patch 1853d280b152d10384a1e21a22cf22152a60be48 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Validation (PoC/EXP) - Looking for Contributors
No public PoC yet
Public validation traces already exist. Community contributors can extend them with richer reproduction content.
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Mitigation Plan - Sorted by Priority
High
Enable extra access controls, WAF/ACL, or reverse-proxy rules for ex_aws_sns.
High
Use logs and IOCs to hunt through production traffic and confirm whether exploitation traces already exist.
Medium
Keep this issue on the watch list and follow vendor advisories, rollback notices, and new variants.
Vulnerability Lifecycle - Click each stage to inspect details
The issue has entered HackerTop VulnFeed and is now being tracked by the community.
The vulnerability has been synchronized into the platform and entered the visible triage flow.
Initial impact validation is complete based on current disclosure, technical details, and public intelligence.
A public proof path already exists for reference.
No in-the-wild exploitation has been confirmed yet, but monitoring should continue.
No vendor patch is available yet. Apply temporary mitigations first.
Reduce exposure, restrict access, and inspect logs until a permanent fix is available.
3.6
CVSS
Temp Score
3.6
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metric Details
Attack Vector
Attack Vector
Network
Attack Complexity
Attack Complexity
Low
Privileges Required
Privileges Required
None
User Interaction
User Interaction
None
Confidentiality Impact
Confidentiality Impact
High
Integrity Impact
Integrity Impact
High
Availability Impact
Availability Impact
High
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CVE-2026-47074 · CVSS 3.6 · Active Threat
