Tesla vulnerable to atom exhaustion via untrusted URL scheme — GHSA-H74C-Q9J7-MPCM

Summary

### Summary In the Mint adapter for the Tesla HTTP client library, `Tesla.Adapter.Mint.open_conn/2` passes the URL scheme of every outgoing request through `String.to_atom/1` with no allow-list validation. Because BEAM atoms are permanent (never garbage-collected) and the atom table is bounded at roughly 1,048,576 entries, an attacker who can vary the URL scheme across requests can mint one fresh atom per request…

Timeline

Published by source

2026-07-10

Risk context

• Reported severity or threat level: high.
• Reported CVSS score: 8.2 out of 10.
• Reported EPSS value: 0.00301.
• Review exposure for the affected product or family: erlang: tesla.

Product

erlang: tesla

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-H74C-Q9J7-MPCM

Source

GitHub

Vendor

GitHub

Published by source

2026-07-10

Last source activity

2026-07-10

Additional identifiers

CVE-2026-48597

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.