CVE-2020-36049
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.4.1-1 |
| sid | Fixed | 3.4.1-1 |
| forky | Fixed | 3.4.1-1 |
| bullseye | Fixed | 3.4.1-1 |
| bookworm | Fixed | 3.4.1-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | socket.io-parser | <3.3.2 | 3.3.2 |
| npm | socket.io-parser | >=3.4.0,<3.4.1 | 3.4.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-36049
- https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
- https://blog.caller.xyz/socketio-engineio-dos
- https://github.com/bcaller/kill-engine-io
- https://github.com/socketio/socket.io-parser/releases/tag/3.3.2
- https://github.com/socketio/socket.io-parser/releases/tag/3.4.1
- https://www.npmjs.com/package/socket.io-parser
- https://security-tracker.debian.org/tracker/CVE-2020-36049
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.