PT-2026-57994 · Hexpm · Elixir-Mint

Andrea Leopardi + 1 · Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-59246

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions elixir-mint versions 0.1.0 through 1.9.1

Description A remote HTTP/2 server can cause memory exhaustion and a denial of service on the client host. The handle continuation/3 function in lib/mint/http2.ex accumulates header-block fragments from HTTP/2 CONTINUATION frames into a nesting structure that only releases upon receiving a frame with the END HEADERS flag. While there is a size limit check via assert header block within max size/2, the protocol allows CONTINUATION frames to have zero-length payloads. An attacker can send an unbounded chain of these zero-length frames, which bypasses the size cap and continuously increases memory consumption by adding one cons cell per frame, eventually leading to out-of-memory termination of the BEAM node.

Recommendations Update elixir-mint to version 1.9.2 or later.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-59246

Affected Products

Elixir-Mint

References · 6

• 🔥 https://github.com/elixir-mint/mint/security/advisories/GHSA-8pf6-g464-h6h9 · Exploit
• https://github.com/elixir-mint/mint/commit/5779de1666344b32aefc4354184ea07f902f73ce · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-59246 · Security Note
• https://twitter.com/CVEnew/status/2076980591178682703 · Twitter Post
• https://osv.dev/vulnerability/EEF-CVE-2026-59246 · Note
• https://cna.erlef.org/cves/CVE-2026-59246.html · Note