Riskcovery

CVE-2026-18839

Popt-devel: popt-static: size_t underflow in singleoptionhelp

State
Published
Severity
2.2 Low
Published
Aug 5, 2026
Updated
Oct 16, 2026
Reserved
Aug 4, 2026

Read the record on cve.org

Description

An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of service of the affected application.

Scores

CVSSScoreVectorSource
3.12.2 LowCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:Lredhat

Weaknesses

  • CWE-191 Integer Underflow (Wrap or Wraparound)

Affected Products

ProductVersions
poptrpm-software-management
  • 1.13 and laterAffected
Red Hat Hardened ImagesRed Hat
  • 1.19-11.2.hum1 and laterNot affected
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 6Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 8Red Hat
          Red Hat Enterprise Linux 9Red Hat
            Red Hat OpenShift Container Platform 4Red Hat
              Red Hat OpenShift Container Platform 4Red Hat

                References

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