Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Deactivated Channel Members Retain Full Access to Group/DM Channels Affected ComponentChannel membership authorization check:- backend/openwebui/models/channels.py lines 663-673, isuserchannelmember- Used at 15 locations in backend/openwebui/routers/channels.py Affected VersionsCurrent main branc...

PYSEC-2026-2732 Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Deactivated Channel Members Retain Full Access to Group/DM Channels Affected Component Channel membership authorization check: - backend/openwebui/models/channels.py lines 663-673, isuserchannelmember - Used at 15 locations in backend/openwebui/routers/channels.py Affected Versions Current main...

Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

SummaryThe RedirectHandler middleware in microsoft/kiota-java com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0 and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. This vulnerability is present in the RedirectHandlers...

PYSEC-2026-2647 Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

Summary The RedirectHandler middleware in microsoft/kiota-java com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0 and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. This vulnerability is present in the RedirectHandlers...

PYSEC-2026-2590 Lemur: LDAP Authentication Globally Disables TLS Certificate Verification When LDAP_USE_TLS Is Enabled

Description Overview When LDAP TLS is enabled LDAPUSETLS = True, Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all...

Lemur: LDAP Authentication Globally Disables TLS Certificate Verification When LDAP_USE_TLS Is Enabled

Description OverviewWhen LDAP TLS is enabled LDAPUSETLS = True, Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all...

Lemur: LDAP Filter Injection enables post-authentication privilege escalation

Description OverviewLemur's LDAP authentication module lemur/auth/ldap.py constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries...

PYSEC-2026-2585 Lemur: LDAP Filter Injection enables post-authentication privilege escalation

Description Overview Lemur's LDAP authentication module lemur/auth/ldap.py constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership querie...

Microdot has HTTP response splitting in Response.set_cookie()

ImpactThe Response.setcookie method does not sanitize its string arguments, and in particular will not detect the presence of the \r\n sequence in them. This can be a potential source of header injection attacks.For a header injection attack through this issue to be possible, an attacker must fir...

PYSEC-2026-2646 Microdot has HTTP response splitting in Response.set_cookie()

Impact The Response.setcookie method does not sanitize its string arguments, and in particular will not detect the presence of the \r\n sequence in them. This can be a potential source of header injection attacks. For a header injection attack through this issue to be possible, an attacker must...

UEFI Firmware Parser has a stack out-of-bounds write in tiano decompressor MakeTable

uefi-firmware contains a stack out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, MakeTable does not validate that bit-length values read from the compressed bitstream are within the expected range 0..16. a crafted firmware blob...

wger has Broken Access Control in Global Gym Configuration Update Endpoint

Summarywger exposes a global configuration edit endpoint at /config/gym-config/edit implemented by GymConfigUpdateView. The view declares permissionrequired = 'config.changegymconfig' but does not enforce it because it inherits WgerFormMixin ownership-only checks instead of the project’s...

PYSEC-2026-3393 UEFI Firmware Parser has a stack out-of-bounds write in tiano decompressor MakeTable

uefi-firmware contains a stack out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, MakeTable does not validate that bit-length values read from the compressed bitstream are within the expected range 0..16. a crafted firmware blob...

UEFI Firmware Parser has a heap out-of-bounds write in tiano decompressor ReadCLen

uefi-firmware contains a heap out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, ReadCLen reads Number = GetBitsSd, CBIT with CBIT = 9, so Number can be as large as 511, while the destination array Sd-mCLen has NC = 510 elements...

wger has Stored XSS via Unescaped License Attribution Fields

Stored XSS via Unescaped License Attribution Fields SummaryThe AbstractLicenseModel.attributionlink property in wger/utils/models.py constructs HTML strings by directly interpolating user-controlled fields licenseauthor, licensetitle, licenseobjecturl, licenseauthorurl, licensederivativesourceurl...

PYSEC-2026-3419 wger has Stored XSS via Unescaped License Attribution Fields

Stored XSS via Unescaped License Attribution Fields Summary The AbstractLicenseModel.attributionlink property in wger/utils/models.py constructs HTML strings by directly interpolating user-controlled fields licenseauthor, licensetitle, licenseobjecturl, licenseauthorurl, licensederivativesourceur...

PYSEC-2026-3394 UEFI Firmware Parser has a heap out-of-bounds write in tiano decompressor ReadCLen

uefi-firmware contains a heap out-of-bounds write vulnerability in the native tiano/EFI decompressor. in uefifirmware/compression/Tiano/Decompress.c, ReadCLen reads Number = GetBitsSd, CBIT with CBIT = 9, so Number can be as large as 511, while the destination array Sd-mCLen has NC = 510 elements...

PYSEC-2026-3424 wger has Broken Access Control in Global Gym Configuration Update Endpoint

Summary wger exposes a global configuration edit endpoint at /config/gym-config/edit implemented by GymConfigUpdateView. The view declares permissionrequired = 'config.changegymconfig' but does not enforce it because it inherits WgerFormMixin ownership-only checks instead of the project’s...

PYSEC-2026-2550 OpenStack Keystone: LDAP identity backend does not convert enabled attribute to boolean

In OpenStack Keystone before 28.0.1, the LDAP identity backend does not convert the user enabled attribute to a boolean when the userenabledinvert configuration option is False the default. The ldaprestomodel method in the UserApi class only performed string-to-boolean conversion when...

Keras has an untrusted deserialization vulnerability

A vulnerability in the TFSMLayer class of the keras package, version 3.13.0, allows attacker-controlled TensorFlow SavedModels to be loaded during deserialization of .keras models, even when safemode=True. This bypasses the security guarantees of safemode and enables arbitrary attacker-controlled...