PYSEC-2026-1921 SignXML's signature verification with HMAC is vulnerable to an algorithm confusion attack

When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., prior versions of SignXML are vulnerable to a potential algorithm confusion attack. Unless the user explicitly limits the expected signature...

GO-2026-5907 Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking in github.com/coder/coder

Coder's OIDC emailverified type coercion bypass enables account takeover via unverified email linking in github.com/coder/coder...

GO-2026-5889 Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled in github.com/projectcontour/contour

Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled in github.com/projectcontour/contour...

GO-2026-5892 Casdoor doesn't verify that a JWT used for token exchange is still active in github.com/casdoor/casdoor

Casdoor doesn't verify that a JWT used for token exchange is still active in github.com/casdoor/casdoor...

PYSEC-2026-1452 Home Assistant does not correctly validate SSL for outgoing requests in core and used libs

Summary Problem: Potential man-in-the-middle attacks due to missing SSL certificate verification in the project codebase and used third-party libraries. Details In the past, aiohttp-session/request had the parameter verifyssl to control SSL certificate verification. This was a boolean value. In...

khoj has an IDOR in subscription management allows unauthorized subscription modifications

SummaryAn Insecure Direct Object Reference IDOR vulnerability in the updatesubscription endpoint allows any authenticated user to manipulate other users' Stripe subscriptions by simply modifying the email parameter in the request. DetailsThe vulnerability exists in the subscription endpoint at...

PYSEC-2026-1923 sigstore has insufficient validation of integration timestamp during verification

Summary Versions of sigstore-python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time" present in "v2" and "v3" bundles during the verification flow: the "integration time" is verified if a source of signed time such as an inclusion promise is present, b...

PYSEC-2026-1892 Salt preflight script could be attacker controlled

The Salt-SSH pre-flight option copies the script to the target at a predictable path, which allows an attacker to force Salt-SSH to run their script. If an attacker has access to the target VM and knows the path to the pre-flight script before it runs they can ensure Salt-SSH runs their script wi...

PYSEC-2026-1468 OpenStack Ironic fails to verify checksums of supplied image_source URLs

In OpenStack Ironic before 21.4.4, 22.x and 23.x before 23.0.3, 23.x and 24.x before 24.1.3, and 25.x and 26.x before 26.1.0, there is a lack of checksum validation of supplied imagesource URLs when configured to convert images to a raw format for streaming...

PYSEC-2026-1913 Slack integration leaks sensitive information in logs

Impact Sentry's Slack integration incorrectly records the incoming request body in logs. This request data can contain sensitive information, including the deprecated Slack verification token. With this verification token, it is possible under specific configurations, an attacker can forge reques...

PYSEC-2026-1873 Requests `Session` object does not verify requests after making first request with verify=False

When using a requests.Session, if the first request to a given origin is made with verify=False, TLS certificate verification may remain disabled for all subsequent requests to that origin, even if verify=True is explicitly specified later. This occurs because the underlying connection is reused...

PYSEC-2026-1336 Ethyca Fides Cryptographically Weak Generation of One-Time Codes for Identity Verification

Impact The Fides Privacy Center allows data subject users to submit privacy and consent requests to data controller users of the Fides web application. Privacy requests allow data subjects to submit a request to access all person data held by the data controller, or delete/erase it. Consent reque...

PYSEC-2026-2063 yt-dlp Generic Extractor MITM Vulnerability via Arbitrary Proxy Injection

Impact The Generic Extractor in yt-dlp is vulnerable to an attacker setting an arbitrary proxy for a request to an arbitrary url, allowing the attacker to MITM the request made from yt-dlp's HTTP session. This could lead to cookie exfiltration in some cases. To pass extra control data between...

PYSEC-2026-1763 PDM Trojan Lockfile

Summary It's possible to craft a malicious pdm.lock file that could allow e.g. an insider or a malicious open source project to appear to depend on a trusted PyPI project, but actually install another project. Details Project foo can be targeted by creating the project foo-2 and uploading the fil...

PDM Trojan Lockfile

SummaryIt's possible to craft a malicious pdm.lock file that could allow e.g. an insider or a malicious open source project to appear to depend on a trusted PyPI project, but actually install another project. DetailsProject foo can be targeted by creating the project foo-2 and uploading the file...

PYSEC-2026-1497 kiwi TCMS has possibility for user to update email address to unverified one

Impact In previous versions of Kiwi TCMS users were able to update their email addresses via the "My profile" admin page. This page allowed them to change the email address registered with their account without the ownership verification performed during account registration. Patches With Kiwi TC...

EUVD-2026-42034

Improper verification of cryptographic signature vulnerability in HAVELSAN Inc. Liman MYS allows Fake the Source of Data. This issue affects Liman MYS: before release.Master.1107...

PYSEC-2026-827 jwcrypto token substitution can lead to authentication bypass

The JWT code can auto-detect the type of token being provided, and this can lead the application to incorrect conclusions about the trustworthiness of the token. Quoting the private disclosure we received : "Under certain circumstances, it is possible to substitute a .. signed JWS with a JWE that...

PYSEC-2026-842 When matrix-nio receives forwarded room keys, the receiver doesn't check if it requested the key from the forwarder

When matrix-nio before 0.20 requests a room key from our devices, it correctly accepts key forwards only if they are a response to a previous request. However, it doesn't check that the device that responded matches the device the key was requested from. This allows a malicious homeserver to inse...

Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (June 2026 - Part 1 of 2)

Summary Multiple vulnerabilities have been addressed in Data Virtualization on IBM Software Hub. Note that Data Virtualization was named Watson Query on IBM Cloud Pak for Data version 4.8. Vulnerability Details CVEID:CVE-2026-50010 DESCRIPTION: Netty is a network application framework for...