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Fencer Intel
high 7.5

CVE-2021-29061 json

ReDOS in Vfsjfilechooser2

published 5y ago modified 4mo ago also GHSA-c7fh-chf7-jr5x , EUVD-2022-0559

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in Vfsjfilechooser2 version 0.2.9 and below which occurs when the application attempts to validate crafted URIs.

Patch / fix

  • maven com.github.fracpete:vfsjfilechooser2 0.2.9

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Exploit prediction

2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/yetingli/SaveResults/blob/main/md/vfsjfilechooser2.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/yetingli/PoCs/blob/main/CVE-2021-29061/Vfsjfilechooser2.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/fracpete/vfsjfilechooser2/issues/7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven com.github.fracpete:vfsjfilechooser2
<0.2.9
0.2.9

Classification

Weakness
  • 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.