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VulnerabilityPublished

CVE-2026-48862: mint · Unthrottled Resource Allocation

Affects mintSource CVE Database V5

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Not known to be exploited · CVSS 8.2 High : upgrade to 1.9.0 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
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, 70b97b6a5209fb288b0e04d8e657dda26c59de67
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 70b97b6a5209fb288b0e04d8e657dda26c59de67.

Affected software

ProductAffectedFixed in
elixir-mintmintAffected
  • >=0.2.0 <1.9.0
Fixed in
  • 1.9.0
elixir-mintmintAffected
  • ≥ 65c6394d05a1b8aa4a7461708c3aa173e8d7a5cf, < 70b97b6a5209fb288b0e04d8e657dda26c59de67
Fixed in
  • 70b97b6a5209fb288b0e04d8e657dda26c59de67
Hexmintpkg:hex/mintOther threatsAffected
  • <1.9.0
Fixed in
  • 1.9.0
Hexmintpkg:hex/mintOther threatsAffected
  • >=0.2.0 <1.9.0
Fixed in
  • 1.9.0

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, consider disabling HTTP/2 server push in the client configuration if possible (e.g., setting client_settings.enable_push to false) to prevent PUSH_PROMISE frames from being accepted.

Description

CVE-2026-48862 is a high-severity vulnerability in the elixir-mint Mint HTTP/2 client library affecting versions 0.2.0 up to but not including 1.9.0. It allows attacker-controlled HTTP/2 servers to exhaust client memory by flooding with PUSH_PROMISE frames. The client accepts server push by default and does not enforce concurrency limits at the time of receiving PUSH_PROMISE frames, leading to unbounded resource allocation until memory exhaustion occurs.

References

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