CVE-2026-53961 Discourse: Forged AWS SNS bounce notifications can disable a targeted user's email (missing TopicArn binding)

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish...

CVE-2026-56140

Improper Input Validation vulnerability in Apache Camel AWS SNS component. The camel-aws2-sns component filters Camel headers through a component-specific HeaderFilterStrategy, Sns2HeaderFilterStrategy. Like the sibling Sqs2HeaderFilterStrategy, it originally configured only an outbound filter...

CVE-2026-56140 Apache Camel AWS2 SNS: An inbound Camel-namespace filter was added to Sns2HeaderFilterStrategy to align it with sibling components

Improper Input Validation vulnerability in Apache Camel AWS SNS component. The camel-aws2-sns component filters Camel headers through a component-specific HeaderFilterStrategy, Sns2HeaderFilterStrategy. Like the sibling Sqs2HeaderFilterStrategy, it originally configured only an outbound filter...

GHSA-8JGF-23Q5-X7XX ex_aws_sns: Trusted-attacker `SigningCertURL` permits complete SNS signature bypass

Summary ExAws.SNS.verifymessage/1 fetches the signing certificate from the SigningCertURL field of the incoming SNS message without validating that the URL uses HTTPS or that its host is an AWS-owned SNS certificate domain. An unauthenticated attacker who can POST to any endpoint that calls...

CVE-2026-8474 Possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances.

A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41, 4.8.0 to 4.8.15, 5.0.0 to 5.0.5 It is possible to execute a reflected XSS attack on the login API available on Stormshield SNS appliance by executing a script on the victim's machine. The risks include the theft of...

CVE-2026-47074

Improper Certificate Validation vulnerability in ex-aws exawssns ExAws.SNS, ExAws.SNS.PublicKeyCache modules allows Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/exaws/sns.ex, lib/exaws/sns/publickeycache.ex and program routines...

CVE-2026-47074

Improper Certificate Validation vulnerability in ex-aws exawssns ExAws.SNS, ExAws.SNS.PublicKeyCache modules allows Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/exaws/sns.ex, lib/exaws/sns/publickeycache.ex and program routines...

CVE-2026-47074 ex_aws_sns SigningCertURL not validated in verify_message/1

Improper Certificate Validation vulnerability in ex-aws exawssns ExAws.SNS, ExAws.SNS.PublicKeyCache modules allows Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/exaws/sns.ex, lib/exaws/sns/publickeycache.ex and program routines...

CVE-2026-44308 Spring Cloud AWS: Missing SNS message signature verification allows spoofing of HTTP/HTTPS endpoint notifications

Spring Cloud AWS simplifies using AWS managed services in a Spring and Spring Boot applications. From 3.0.0 to 4.0.1, pplications using Spring Cloud AWS SNS HTTP/HTTPS endpoint support @NotificationMessageMapping, @NotificationSubscriptionMapping, @NotificationUnsubscribeConfirmationMapping did n...

CVE-2026-44308

CVE-2026-44308 concerns Spring Cloud AWS, where the SNS HTTP/HTTPS endpoint support methods (@NotificationMessageMapping, @NotificationSubscriptionMapping, @NotificationUnsubscribeConfirmationMapping) failed to verify incoming SNS message signatures from versions 3.0.0 through 4.0.1. An unauthent...

CVE-2026-42193

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

CVE-2026-42193 Plunk: SNS webhook forgery

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

EUVD-2026-28832

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

be.appify.prefab:prefab-sns-sqs (>=0.4.0 <=0.7.1), be.appify.prefab:prefab-test (>=0.4.0 <=0.7.1) +8 more potentially affected by CVE-2026-44308 via io.awspring.cloud:spring-cloud-aws-sns (>=4.0.0 <=4.0.1)

io.awspring.cloud:spring-cloud-aws-sns MAVEN version =4.0.0, =0.4.0, =0.4.0, =4.0.0, =4.0.0, =4.0.0, =2.1.0, =1.3.0, =7.0.0, =7.0.0, =7.3.1 Source cves: CVE-2026-44308 Source advisory: OSV:GHSA-R4W4-WV68-QV85...

Spring Cloud AWS missing SNS message signature verification allows spoofing of HTTP/HTTPS endpoint notifications

Impact Applications using Spring Cloud AWS SNS HTTP/HTTPS endpoint support @NotificationMessageMapping, @NotificationSubscriptionMapping, @NotificationUnsubscribeConfirmationMapping did not verify the signature of incoming SNS messages. An unauthenticated attacker who knows the endpoint URL could...

be.appify.prefab:prefab-sns-sqs (>=0.4.0 <=0.7.1), be.appify.prefab:prefab-test (>=0.4.0 <=0.7.1) +8 more potentially affected by CVE-2026-44308 via io.awspring.cloud:spring-cloud-aws-sns (>=4.0.0-M1 <=4.0.1)

io.awspring.cloud:spring-cloud-aws-sns MAVEN version =4.0.0-M1, =0.4.0, =0.4.0, =4.0.0, =4.0.0, =4.0.0, =2.1.0, =1.3.0, =7.0.0, =7.0.0, =7.3.1 Source cves: CVE-2026-44308 Source advisory: SNYK:JAVA-IOAWSPRINGCLOUD-16799818...

com.limemojito.oss.spring-boot:aws-utilities (>=11.0.0 <=12.0.7), com.limemojito.oss.standards:aws-utilities (>=13.0.0 <=14.1.0) +8 more potentially affected by CVE-2026-44308 via io.awspring.cloud:spring-cloud-aws-sns (>=3.0.0 <=3.4.2)

io.awspring.cloud:spring-cloud-aws-sns MAVEN version =3.0.0, =11.0.0, =13.0.0, =3.2.0, =3.0.0, =0.16.0, =1.1.0, =0.0.1, =2.1.0, =2.0.0, =7.0.0-beta Source cves: CVE-2026-44308 Source advisory: OSV:GHSA-R4W4-WV68-QV85...

PT-2026-38403

Name of the Vulnerable Software and Affected Versions Spring Cloud AWS versions 3.0.0 through 4.0.1 Description Applications using Spring Cloud AWS SNS HTTP/HTTPS endpoint support via @NotificationMessageMapping, @NotificationSubscriptionMapping, or @NotificationUnsubscribeConfirmationMapping do...

CVE-2026-39667

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Jongmyoung Kim Korea SNS korea-sns allows DOM-Based XSS.This issue affects Korea SNS: from n/a through = 1.7.0...

CVE-2026-39667

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Jongmyoung Kim Korea SNS korea-sns allows DOM-Based XSS.This issue affects Korea SNS: from n/a through = 1.7.0...