CVE detail
CVE-2026-47067
Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackney_url.erl converts every unrecognized URL scheme to a permanent BEAM atom via binary_to_atom/2. BEAM atoms are never garbage-collected and the atom table defaults to a hard limit of 1,048,576 entries. An attacker who can supply URLs with attacker-chosen scheme prefixes — directly as request targets, as configured webhook URLs, or via Location headers followed during redirects — can exhaust the atom table and crash the entire BEAM VM with system_limit. This issue affects hackney: from 2.0.0 before 4.0.1.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
No excerpt available.
Exploitosv.devMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PM- https://cna.erlef.org/cves/CVE-2026-47067.htmlcna.erlef.org
No excerpt available.
Vendor Advisorycna.erlef.orgMay 25, 2026, 3:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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