CVE-2026-34826

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.getbyteranges parses the HTTP Range header without limiting the number of individual byte ranges. Although the existing fix for CVE-2024-26141 rejects ranges whose total byte coverage exceeds the...

CVE-2026-34826 Rack: Unbounded Range Count in get_byte_ranges Enables DoS

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.getbyteranges parses the HTTP Range header without limiting the number of individual byte ranges. Although the existing fix for CVE-2024-26141 rejects ranges whose total byte coverage exceeds the...

PT-2026-29857

Rack versions 3.0.0.beta1 through 3.1.21, and 3.2.0 through 3.2.6 are affected by an issue where the Rack::Request component improperly parses the Host header, accepting characters not permitted in RFC-compliant hostnames such as /, ?, , and @. This can lead to host header poisoning in applicatio...

PT-2026-29815

Name of the Vulnerable Software and Affected Versions Rack versions prior to 2.2.23, 3.1.21, and 3.2.6 Description The Rack::Utils.get byte ranges function parses the HTTP Range header without limiting the number of individual byte ranges. While a previous fix for CVE-2024-26141 prevents ranges...

Rack's multipart byte range processing allows denial of service via excessive overlapping ranges

Summary Rack::Utils.getbyteranges parses the HTTP Range header without limiting the number of individual byte ranges. Although the existing fix for CVE-2024-26141 rejects ranges whose total byte coverage exceeds the file size, it does not restrict the count of ranges. An attacker can supply many...

Grafana 8.0.0 < 11.6.14 / 12.0.0 < 12.1.10 / 12.2.0 < 12.2.8 / 12.3.0 < 12.3.6 / 12.4.0 < 12.4.2 DoS (CVE-2026-27879)

The version of Grafana installed on the remote host is 8.0.x through 11.6.x prior to 11.6.14, 12.0.x through 12.1.x prior to 12.1.10, 12.2.x prior to 12.2.8, 12.3.x prior to 12.3.6, or 12.4.x prior to 12.4.2. It is, therefore, affected by a denial of service vulnerability: - A resample query can ...

Rack 安全漏洞

Rack is a modular Ruby web server interface developed by Rack authors. Vulnerabilities exist in versions of Rack prior to 2.2.23, 3.1.21, and 3.2.6. These vulnerabilities stem from Rack::Utils.getbyteranges, which does not limit the number of individual byte ranges when parsing HTTP Range headers...

CVE-2026-34443

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

mysql: Optimizer unspecified vulnerability (CPU Jan 2026)

Oracle CPU describes the issue as following: Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network...

CVE-2026-2394

RTI Connext Professional (Core Libraries) contains a Buffer Over-read vulnerability (CVE-2026-2394) affecting multiple older release families: 7.4.0–7.6.x (before 7.7.0), 7.0.0–7.3.1.1, 6.1.0–6.1.x, 6.0.0–6.0.x, 5.3.0–5.3.x, and 4.3.x–5.2.x. Root cause: overread of internal buffers in the Core Li...

GHSA-G86V-F9QV-RH6M OpenClaw SSRF guard misses four IPv6 special-use ranges

Summary The SSRF/IP classifier treated several IPv6 special-use ranges as public and allowed fetches to proceed. Impact An attacker who controlled a fetched URL could target internal or non-routable IPv6 addresses that should have been blocked by the SSRF guard. Affected Component...

OpenClaw SSRF guard misses four IPv6 special-use ranges

Summary The SSRF/IP classifier treated several IPv6 special-use ranges as public and allowed fetches to proceed. Impact An attacker who controlled a fetched URL could target internal or non-routable IPv6 addresses that should have been blocked by the SSRF guard. Affected Component...

GHSA-PQHR-MP3F-HRPP Nuxt OG Image vulnerable to Server-Side Request Forgery via user-controlled parameters

Product: Nuxt OG Image Version: injection via html parameter GET /og/d/og.png?html= When verbose errors are enabled, the response content is leaked in base64-encoded error messages. Vector 3: SVG injection via html parameter GET /og/d/og.png?html= Mitigation Fixed in v6.2.5. The image source plug...

CVE-2026-34443

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

CVE-2026-34443 FreeScout: SSRF protection bypass via broken CIDR check in checkIpByMask()

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

CVE-2026-34443

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

EUVD-2026-17674

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

CVE-2026-34443 FreeScout: SSRF protection bypass via broken CIDR check in checkIpByMask()

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR...

CVE-2026-34443

FreeScout (Laravel) contains a flaw in checkIpByMask() in app/Misc/Helper.php prior to version 1.8.211: it only checks for a slash and returns false for plain IPs, bypassing CIDR evaluation. This leaves the 10.0.0.0/8 and 172.16.0.0/12 private ranges unprotected, enabling potential SSRF-like expo...

CVE-2026-33074

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, a user may be able to purchase a lower tier subscription but grant themselves the benefits that comes along with a higher...