Mattermost doesn't rate limit login requests, allowing DoS

Mattermost versions 11.4.x = 11.4.0, 11.3.x = 11.3.1, 11.2.x = 11.2.3, 10.11.x = 10.11.11 fail to rate limit login requests which allows unauthenticated remote attackers to cause denial of service server crash and restart via HTTP/2 single packet attack with 100+ parallel login requests...

Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS due to the lack of rate limiting in the login process. An attacker can exhaust server resources by sending a large number of parallel login requests via a single HTTP/2 packet, potentially causing the server to cra...

LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

Summary The replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a backreference to the matched substring. The filter only charges memoryLimit for the input string length, not the amplified output. An attacker can achieve exponential memory amplificati...

GHSA-6Q5M-63H6-5X4V LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

Summary The replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a backreference to the matched substring. The filter only charges memoryLimit for the input string length, not the amplified output. An attacker can achieve exponential memory amplificati...

EUVD-2026-16062

LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash...

GHSA-9R5M-9576-7F6X LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash

Summary LiquidJS's memoryLimit security mechanism can be completely bypassed by using reverse range expressions e.g., 100000000..1, allowing an attacker to allocate unlimited memory. Combined with a string flattening operation e.g., replace filter, this causes a V8 Fatal error that crashes the...

LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash

Summary LiquidJS's memoryLimit security mechanism can be completely bypassed by using reverse range expressions e.g., 100000000..1, allowing an attacker to allocate unlimited memory. Combined with a string flattening operation e.g., replace filter, this causes a V8 Fatal error that crashes the...

Allocation of Resources Without Limits or Throttling

Overview liquidjs is an A simple, expressive, safe and Shopify compatible template engine in pure JavaScript. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through improper validation of range values in the use function. An attacker can...

CVE-2026-26233

Mattermost versions 11.4.x = 11.4.0, 11.3.x = 11.3.1, 11.2.x = 11.2.3, 10.11.x = 10.11.11 fail to rate limit login requests which allows unauthenticated remote attackers to cause denial of service server crash and restart via HTTP/2 single packet attack with 100+ parallel login requests...

CVE-2026-26233

CVE-2026-26233 affects Mattermost releases 10.11.x to 11.4.x, where login requests are not rate-limited, enabling unauthenticated remote attackers to cause denial of service via an HTTP/2 single-packet attack with 100+ parallel login requests. No patch/version details are provided in the document...

CVE-2026-23390

CVE-2026-23390 : In the Linux kernel, the tracing/dma subsystem fixes a potential perf buffer overflow in the dma_map_sg tracepoint when handling large scatter-gather lists (e.g., large DRM buffers). The patch caps the three dynamic arrays at 128 entries using min() to prevent excessive allocatio...

Security update for salt

This update for salt fixes the following issues: Security issues fixed: CVE-2025-67724: Fixed missing validation of supplied reason phrase bsc1254903 CVE-2025-67725: Fixed DoS via malicious HTTP request bsc1254905 CVE-2025-67726: Fixed HTTP header parameter parsing algorithm bsc1254904...

SUSE-SU-2026:1027-1 Security update for salt

This update for salt fixes the following issues: - Security issues fixed: CVE-2025-67724: Fixed missing validation of supplied reason phrase bsc1254903 CVE-2025-67725: Fixed DoS via malicious HTTP request bsc1254905 CVE-2025-67726: Fixed HTTP header parameter parsing algorithm bsc1254904...

Security update 5.0.7 for Multi-Linux Manager Salt Bundle

This update fixes the following issues: venv-salt-minion: Security issues fixed: CVE-2025-67724: Fixed missing validation of supplied reason phrase bsc1254903 CVE-2025-67725: Fixed DoS via malicious HTTP request bsc1254905 CVE-2025-67726: Fixed HTTP header parameter parsing algorithm bsc1254904...

PT-2026-28162

Name of the Vulnerable Software and Affected Versions LiquidJS versions prior to 10.25.1 Description LiquidJS’s memoryLimit security feature can be bypassed using reverse range expressions e.g., 100000000..1, allowing an attacker to allocate unlimited memory. When combined with a string flattenin...

PT-2026-27961

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.4.0 and earlier Mattermost versions 11.3.1 and earlier Mattermost versions 11.2.3 and earlier Mattermost versions 10.11.11 and earlier Description The software does not adequately limit the rate of login requests. This...

FreeBSD -- TCP: remotely exploitable DoS vector (mbuf leak)

Problem Description: When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. Impact: If an attacker is either on path with an established TCP...

GHSA-M2P3-HWV5-XPQW Scriban: Denial of Service via Unbounded Cumulative Template Output Bypassing LimitToString

Summary The LimitToString safety limit default 1MB since commit b5ac4bf can be bypassed to allocate approximately 1GB of memory by exploiting the per-call reset of currentToStringLength in ObjectToString. Each template expression rendered through TemplateContext.WriteSourceSpan, object triggers a...

Scriban: Denial of Service via Unbounded Cumulative Template Output Bypassing LimitToString

Summary The LimitToString safety limit default 1MB since commit b5ac4bf can be bypassed to allocate approximately 1GB of memory by exploiting the per-call reset of currentToStringLength in ObjectToString. Each template expression rendered through TemplateContext.WriteSourceSpan, object triggers a...

GHSA-P6Q4-FGR8-VX4P Scriban has a Stack Overflow via Nested Array Initializers That Bypass the ExpressionDepthLimit Fix

Summary StackOverflowException via nested array initializers bypasses ExpressionDepthLimit fix GHSA-wgh7-7m3c-fx25 Details The recent fix for GHSA-wgh7-7m3c-fx25 uncontrolled recursion in parser added ExpressionDepthLimit defaulting to 250. However, deeply nested array initializers ... recurse...