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CVE-2020-1729

Severity4.4 Medium CVSS 3.1 2 scores
Fixed in1.6.2
WeaknessIncorrect authorization (CWE-863)
Published28 May 2021
Updated17 Jun 2026

Description

A flaw was found in SmallRye's API through version 1.6.1. The API can allow other code running within the application server to potentially obtain the ClassLoader, bypassing any permissions checks that should have been applied. The largest threat from this vulnerability is a threat to data confidentiality. This is fixed in SmallRye 1.6.2

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.27% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: smallrye/smallrye-config fb0def6.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory
Finding This CVE is MEDIUM severity, is not listed in CISA KEV or VulnCheck KEV, has no public exploit or PoC in any indexed source, carries no CISA Vulnrichment finding of a demonstrated exploit, and is not part of an Oracle Critical Patch Update. None of the signals that would put it in front of an engineer is present, and the volume of CVEs below that bar is too great to take one at a time, so no rule is written for it. This is a decision about what we act on, not a finding that the CVE is harmless — a patch may well be derivable, and a low-severity defect can still be one link in a longer chain.
Candidate fix https://bugzilla.redhat.com/show_bug.cgi?id=1802444 : a Red Hat bug: the triage, which links onward to the fix

CVSS

4.4 MEDIUM v3.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 4.4 MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N NVD Primary published
CVSS 2.0 2.1 none AV:L/AC:L/Au:N/C:P/I:N/A:N NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
io.smallrye.config:smallrye-config 0 1.6.2 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
osv io.smallrye.config smallrye-config generic < 1.6.2
nvd redhat smallrye config generic < 1.6.2

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=1802444 bugzilla
https://access.redhat.com/errata/RHSA-2020:2058 ADVISORY, RHSA-2020:2058
https://access.redhat.com/security/cve/CVE-2020-1729 REPORT, RHSA-2020:2058
https://access.redhat.com/errata/RHSA-2020:2059 ADVISORY, RHSA-2020:2059
https://access.redhat.com/errata/RHSA-2020:2060 ADVISORY, RHSA-2020:2060
https://github.com/smallrye/smallrye-config/commit/fb0def6f61c09a2a80c9145e4ec6521225cd0b99 WEB

Timeline

Published2021-05-28By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.