CVE-2026-91043: mint · Unthrottled Resource Allocation
Affects mintSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 1.10.2 soon.
Data as of 12 Nov 2026, 23:25 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.10.2
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 28 Sep 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 13 Nov 2026.
What to do
Upgrade mint to 1.10.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| elixir-mintmint | Affected
| Fixed in
|
| elixir-mintmint | 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 limiting exposure to untrusted HTTP/2 servers or applying any recommended configuration changes from the vendor.
Description
CVE-2026-91043 is a high-severity vulnerability in the elixir-mint mint library affecting versions from 1.1.0 up to but not including 1.10.2. It involves improper resource allocation limits in the HTTP/2 client implementation, allowing a malicious HTTP/2 server to cause excessive memory consumption on the client by exploiting how header sizes are enforced. This can lead to denial of service by exhausting the memory of the process or the entire virtual machine.
References
- github.com/elixir-mint/mint/security/advisories/GHSA-9x8p-qrf4-jq7g (opens in a new tab)
- cna.erlef.org/cves/CVE-2026-91043.html (opens in a new tab)
- osv.dev/vulnerability/EEF-CVE-2026-91043 (opens in a new tab)
- github.com/elixir-mint/mint/commit/8e0e04680476f90f9f68db4dfeabcbe66dabfc4d (opens in a new tab)
- github.com/elixir-mint/mint/commit/c7895cb022196c77ec35570c8e873a84393ff4b8 (opens in a new tab)
- github.com/elixir-mint/mint/commit/65a0d61c9eab6b0dedac809de7212515bf506250 (opens in a new tab)