CVE-2026-47074
Elixir ex_aws_sns allows signature spoofing via unvalidated SigningCertURL.
Is CVE-2026-47074 being exploited?
Not confirmed. CVE-2026-47074 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-47074?
CVE-2026-47074 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-47074?
Yes. A fix has been recorded for CVE-2026-47074. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-47074 affect?
CVE-2026-47074 affects ex_aws_sns (Elixir), ExAws.SNS, ExAws.SNS.PublicKeyCache. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-47074?
Upgrade to 2.3.5+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypass SNS signature verification; forged SNS messages accepted.
Patch when possible
- affected>= 2.0.1 and < 2.3.5
- affected>= a7ec21880943f4dac1d59bda557db0ffcd2b61fa and < 1853d280b152d10384a1e21a22cf22152a60be48
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.