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Fencer Vulns
high 8.1

CVE-2023-0739 json

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in answerdev/answer

published 2023-02-08 3 y ago modified 2026-06-17 4 mo ago also GHSA-qx34-47fc-vv79 , GO-2023-1553 , EUVD-2023-0780

cvss
8.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in GitHub repository answerdev/answer prior to 1.0.4.

Patch / fix

  • go github.com/answerdev/answer 1.0.4
  • answerdev answerdev/answer 1.0.4

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/93d7fac9-50be-4624-9096-45b89fbfd4ae referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 8.1 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
GitHub 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/answerdev/answer
<1.0.4
1.0.4

Affected products

  • answerdev answerdev/answer

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-365 DEPRECATED: Race Condition in Switch

References

Sources

Fencer Vulns 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.