CVE-2026-49754: mint · Unthrottled Resource Allocation
Affects mintSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 1.9.0 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.9.0, b662d127d3028b5426c88d4c9cc7fe430491a10b
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade mint to 1.9.0; mint to b662d127d3028b5426c88d4c9cc7fe430491a10b.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| elixir-mintmint | Affected
| Fixed in
|
| elixir-mintmint | Affected
| Fixed in
|
Hexmintpkg:hex/mintOther threats | Affected
| Fixed in
|
Hexmintpkg:hex/mintOther threats | Affected
| Fixed in
|
CPE configurations (1)
cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, users should consider avoiding connections to untrusted HTTP/2 servers or implement external controls to limit resource consumption.
Description
CVE-2026-49754 is a high-severity vulnerability in the elixir-mint Mint HTTP client affecting versions 0.1.0 and all versions before 1.9.0. It arises from the lack of limits or throttling on inbound HTTP/2 CONTINUATION frames, allowing a malicious HTTP/2 server to exhaust client memory by sending an unbounded sequence of CONTINUATION frames. This can cause the client's BEAM process to crash due to memory exhaustion. The vulnerability is due to the absence of per-stream size limits and the max_header_list_size setting not being enforced on incoming headers.
References
- github.com/elixir-mint/mint/security/advisories/GHSA-2p26-p43x-fhp8 (opens in a new tab)
- cna.erlef.org/cves/CVE-2026-49754.html (opens in a new tab)
- osv.dev/vulnerability/EEF-CVE-2026-49754 (opens in a new tab)
- github.com/elixir-mint/mint/commit/b662d127d3028b5426c88d4c9cc7fe430491a10b (opens in a new tab)