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Fencer Intel
medium 4.0

CVE-2025-53604 json

Web Push Denial of Service via malicious Web Push endpoint

published last yr. modified 4mo ago also GHSA-287x-9rff-qvcg , GHSA-fc83-9jwq-gc2m , RUSTSEC-2025-0015 , EUVD-2025-20100

cvss
4.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

The web-push crate before 0.10.3 for Rust allows a denial of service (memory consumption) in the built-in clients via a large integer in a Content-Length header.

Patch / fix

  • crates.io web-push 0.10.3, 0.10.4
  • pimeys web-push 0.10.3

Is CVE-2025-53604 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
GitHub 3.1 4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
crates.io web-push
<0.10.4
>=0.0.0-0, <0.10.3
0.10.4
0.10.3

Affected products

  • pimeys web-push

Classification

Weakness
  • CWE-130 Improper Handling of Length Parameter Inconsistency
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.