CVE-2026-47074
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk13th percentile - higher than 13% of all known CVEs
Summary
Podatność CVE-2026-47074 dotyczy niewłaściwej walidacji certyfikatów w modułach ex_aws_sns (ExAws.SNS, ExAws.SNS.PublicKeyCache), co umożliwia fałszowanie podpisów. Problem polega na tym, że funkcja 'Elixir.ExAws.SNS':verify_message/1 pobiera certyfikat podpisu z pola SigningCertURL bez weryfikacji, czy URL używa HTTPS oraz czy host odpowiada domenie certyfikatu SNS należącego do AWS.
Risk Assessment
Niewłaściwa walidacja certyfikatów stwarza ryzyko, że nieautoryzowany atakujący może wysłać sfałszowaną wiadomość SNS, co prowadzi do całkowitego obejścia weryfikacji podpisu SNS. Może to skutkować poważnymi konsekwencjami dla integralności danych w systemie.
Recommendation
Zaleca się aktualizację modułu ex_aws_sns do wersji 2.3.5 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto wdrożyć dodatkowe mechanizmy weryfikacji certyfikatów w aplikacji.
Related vulnerabilities
- CVE-2026-71377Critical
Command argument injection vulnerability in Cosminexus Component Container. Allows an attacker to execute unauthorized system commands.
- CVE-2026-71376Critical
OS command injection vulnerability in Cosminexus Component Container. Allows an attacker to execute arbitrary commands on the server.
- CVE-2026-62645Critical
Vulnerability in Reyrolle 7SR5 exposes information through the web interface that can be used to calculate current and past session ID numbers. An attacker could bypass authentication and gain unauthorized access to the device.
- CVE-2026-50093Critical
Vulnerability in the OIS web module of Siveillance Control allows an attacker to upload arbitrary files to the server. Successful exploitation could allow an attacker to gain root access on the host system, potentially leading to full compromise of the OIS environment.
- CVE-2026-71374Critical
Deserialization of untrusted data vulnerability in Cosminexus Component Container. Could allow an attacker to execute arbitrary code or cause a crash.
- CVE-2026-86510Critical
The D-Link DIR-822A router version A_101 has a vulnerability in the tunnel_set_params function of the L2TP Control Message Parser component, leading to an out-of-bounds write. The attack can be launched remotely, and the exploit has been publicly disclosed.
- CVE-2026-86509Critical
The D-Link DIR-895L router version A1_102b07 has a vulnerability in the sendOffer/sendACK functions of the file udhcpcd/serverpacket.c in the udhcpcd component, causing a stack-based buffer overflow. The attack can only be performed within the local network, and the exploit has been published.
- CVE-2026-76969Critical
The @sap/cds-mtxs NPM library does not perform sufficient checks on certain functionality used in multitenant CAP applications with extensibility enabled. An unauthenticated attacker could send specially crafted requests to obtain sensitive credentials and abuse them to replace or delete tenant data. Successful exploitation can result in a high impact on availability and integrity of the application, and partial impact on confidentiality of business data.
- CVE-2026-66768Critical
SAP GUI for Java does not correctly enforce the trust level policy for certain functions invoked from a connected backend system. A low-privileged attacker could exploit this weakness by manipulating a connected backend system to trigger affected functionality. This could allow arbitrary command execution on the victim's machine, leading to a high impact on confidentiality, integrity, and availability.
- CVE-2026-58240Critical
SAP NetWeaver Message Server does not sufficiently validate the authenticity of internal application server components during registration. An unauthenticated attacker with network access could register an unauthorized component and potentially perform unauthorized actions, resulting in high impact on confidentiality, integrity, and availability.
Original NVD description (English source)
Improper Certificate Validation vulnerability in ex-aws ex_aws_sns (ExAws.SNS, ExAws.SNS.PublicKeyCache modules) allows Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/ex_aws/sns.ex, lib/ex_aws/sns/public_key_cache.ex and program routines 'Elixir.ExAws.SNS':verify_message/1, 'Elixir.ExAws.SNS.PublicKeyCache':get/1. 'Elixir.ExAws.SNS':verify_message/1 fetches the signing certificate from the SigningCertURL field of the incoming SNS message without validating that the URL uses HTTPS or that the host matches an AWS-owned SNS certificate domain. An unauthenticated attacker who can POST to an endpoint that calls verify_message/1 can supply an attacker-controlled SigningCertURL, sign a forged SNS message with their own key, and cause the function to return :ok, completely bypassing SNS signature verification. This issue affects ex_aws_sns: from 2.0.1 before 2.3.5.

