CVE-2026-6873

A flaw was found in Django. A remote attacker could exploit a non-injective salt derivation in django.http.HttpRequest.getsignedcookie by crafting specific cookie name and salt argument pairs. This vulnerability allows the attacker to use a signed cookie in a different context than intended,...

CVE-2026-7666

A flaw was found in Django. An on-path network attacker could exploit a vulnerability in django.core.mail.backends.smtp.EmailBackend where a partially-initialized connection is reused after a failed STARTTLS handshake when failsilently=True. This could allow the attacker to intercept and read ema...

CVE-2026-35193

A flaw was found in Django. This vulnerability allows a remote attacker to read private cached responses. This occurs because the UpdateCacheMiddleware in Django does not correctly add the Authorization header to the Vary response header for requests that include an Authorization header but lack...

Use of Cache Containing Sensitive Information

Overview Affected versions of this package are vulnerable to Use of Cache Containing Sensitive Information in the UpdateCacheMiddleware function. An attacker can access sensitive cached data by making unauthenticated requests to endpoints that have previously been accessed with an Authorization...

Incomplete Comparison with Missing Factors

Overview Affected versions of this package are vulnerable to Incomplete Comparison with Missing Factors in the hasvaryheader function. An attacker can gain access to cached responses intended for other users by sending requests with whitespace-padded Vary header values. Remediation Upgrade django...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the getsignedcookie function. An attacker can access data intended for a different context by crafting distinct name, salt pairs that result in the same concatenated value. Remediation...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity due to improper handling of Cache-Control directives in UpdateCacheMiddleware. An attacker can gain unauthorized access to sensitive response data by sending requests with uppercase or mixed-case...

Cleartext Transmission of Sensitive Information

Overview Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information in the EmailBackend function when a failed STARTTLS handshake occurs and failsilently=True is set. An attacker can intercept and read email content by performing a man-in-the-middle attack...

GHSA-923M-GV2P-W5QP Django: has_vary_header may expose cached responses when Vary values contain whitespace

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.utils.cache.hasvaryheader in Django does not strip leading or trailing whitespace from Vary response header values before comparison, which allows remote attackers to read cached responses via requests to URLs whose...

Django: signed cookies are vulnerable to salt namespace collisions

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.http.HttpRequest.getsignedcookie in Django uses a non-injective salt derivation concatenating the cookie name and salt argument, which allows a remote attacker to use a cookie in a context different from the one wher...

GHSA-H7PC-VWP9-298G Django: signed cookies are vulnerable to salt namespace collisions

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.http.HttpRequest.getsignedcookie in Django uses a non-injective salt derivation concatenating the cookie name and salt argument, which allows a remote attacker to use a cookie in a context different from the one wher...

GHSA-8CJM-8MP7-R2XF Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

GHSA-MM6V-Q8Q9-PGCF Django fails to prevent reuse of a partially-initialized connection after a failed `STARTTLS` handshake

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

Django: has_vary_header may expose cached responses when Vary values contain whitespace

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.utils.cache.hasvaryheader in Django does not strip leading or trailing whitespace from Vary response header values before comparison, which allows remote attackers to read cached responses via requests to URLs whose...

GHSA-QPC8-7FXC-CM4P Django: UpdateCacheMiddleware may disclose private cached responses by omitting Authorization from Vary

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not add Authorization to the Vary response header for requests bearing that header without Cache-Control: public, which allows remote attackers to read private...

PYSEC-2026-201

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

CVE-2026-8404

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

PYSEC-2026-201

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

CVE-2026-7666

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...