CVE-2026-53961

CVE-2026-53961 concerns Discourse, an open-source discussion platform. Prior to the fixed versions, the AWS SES bounce webhook at POST /webhooks/aws did not bind SNS-signed messages to trusted TopicArn values, enabling any AWS account holder to publish forged Bounce notifications that revoke a ta...

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-2026-53961 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-2026-53961 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...

EUVD-2026-42728

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-2026-53961

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-2026-53961: Insufficient Verification of Data Authenticity

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...

PT-2026-56998

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.6.0 Discourse versions prior to 2026.5.1 Discourse versions prior to 2026.4.2 Discourse versions prior to 2026.1.5 Description The AWS SES bounce webhook at the endpoint "POST /webhooks/aws" verifies that SNS...

CVE-2026-53164

A flaw was found in the Linux kernel's input/output memory management unit IOMMU Direct Memory Access DMA subsystem, specifically within the software IOMMU bounce buffer SWIOTLB mechanism. This vulnerability occurs when the system attempts to map a zero-length memory region, which can be triggere...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ceph: Fix for numops off-by-one when crypto allocation fails The movedirtyfolioinpagearray function may fail if the file is encrypted, if the dirty folio is not the first in the batch, and if it fails to allocate a bounce buffer ...

FreeBSD : Erlang/OTP -- FTP passive-mode client does not validate server response IP (d87e0681-64d4-11f1-ab11-4c526214c986)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the d87e0681-64d4-11f1-ab11-4c526214c986 advisory. https://github.com/erlang/otp/security/advisories/GHSA-24cv-hwgr-37fq reports: The FTP client in passiv...

CVE-2026-48858

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

AZL-90117 CVE-2026-48858 affecting package erlang for versions less than 26.2.5.21-2

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-48858

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-48858 ftp client PASV response IP not validated against control peer, enabling SSRF and FTP bounce attacks

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-48858 ftp client PASV response IP not validated against control peer, enabling SSRF and FTP bounce attacks

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-48858

The CVE-2026-48858 entry describes a Server-Side Request Forgery (SSRF) flaw in Erlang/OTP ftp’s PASV path: the ftp_internal PASV handler accepts the server’s 227 response IP and passes it to gen_tcp:connect without validating it against the control connection peer, unlike EPSV handlers. This ena...

EUVD-2026-36055

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-48858: Server-Side Request Forgery (SSRF)

Server-Side Request Forgery SSRF vulnerability in Erlang/OTP ftp ftpinternal module allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftpinternal:handlectrlresult/2 PASV handler mode=passive, ipfamily=inet, ftpextension=false extracts the IP address from the...

CVE-2026-45782: Use After Free

Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....