USN-8009-1: Django vulnerabilities

It was discovered that Django exposed timing information when checking passwords. An attacker could possibly use this issue to obtain sensitive information. CVE-2025-13473 Jiyong Yang discovered that Django incorrectly handled malformed requests with duplicate headers. An attacker could possibly...

Django has Inefficient Algorithmic Complexity

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

GHSA-33MW-Q7RJ-MJWJ Django has Inefficient Algorithmic Complexity

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

PYSEC-2026-43

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers.Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

PYSEC-2026-43

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550 Potential denial-of-service vulnerability via repeated headers when using ASGI

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550

CVE-2025-14550 is a Django vulnerability affecting multiple supported branches where ASGIRequest can be abused by a crafted request with duplicate headers to trigger a denial-of-service. Affected versions include 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28; older series (e.g., 5.0....

CVE-2025-14550

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550 Potential denial-of-service vulnerability via repeated headers when using ASGI

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550 Potential denial-of-service vulnerability via repeated headers when using ASGI

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

EUVD-2025-206739

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

CVE-2025-14550

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

UBUNTU-CVE-2025-14550

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. ASGIRequest allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series such as 5.0.x, 4.1.x, and 3.2.x were not...

PT-2026-5880

Name of the Vulnerable Software and Affected Versions Django versions 6.0 through 6.0.1 Django versions 5.2 through 5.2.10 Django versions 4.2 through 4.2.27 Django versions 5.0.x and earlier Django versions 4.1.x and earlier Django versions 3.2.x and earlier Description The ASGIRequest component...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the...

CLSA-2026-1769598671 libsoup: Fix of CVE-2025-14523

CVE-2025-14523: reject duplicate Host headers to prevent request smuggling, cache poisoning, and host-based access control bypass attacks...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the...

libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)

A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the...