RHSA-2026:28046

Vulnerability from csaf_redhat - Published: 2026-06-22 20:59 - Updated: 2026-06-24 15:34
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (golang-uber-multierr) security update
Severity
Moderate
Notes
Topic: An update for golang-uber-multierr is now available for Red Hat OpenStack Platform 17.1 (Wallaby). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Security Fix(es): * internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-32282

A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the `Root.Chmod` function is replaced with a symbolic link during execution, specifically after `Root.Chmod` checks the target but before acting, the `chmod` operation will be performed on the file the symbolic link points to. This issue can bypass directory restrictions and lead to unauthorized permission changes on the filesystem.

7.8 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOS-17.1:collectd-libpod-stats-0:1.0.6-7.el9ost.src —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOS-17.1:collectd-libpod-stats-0:1.0.6-7.el9ost.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOS-17.1:golang-uber-multierr-0:1.5.0-2.el9ost.src —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOS-17.1:golang-uber-multierr-0:1.5.0-2.el9ost.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
References
To clipboard 

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      },
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          "text": "A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the `Root.Chmod` function is replaced with a symbolic link during execution, specifically after `Root.Chmod` checks the target but before acting, the `chmod` operation will be performed on the file the symbolic link points to. This issue can bypass directory restrictions and lead to unauthorized permission changes on the filesystem.",
          "title": "Vulnerability description"
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          "text": "golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "To exploit this issue, an attacker needs access to the system and the required permissions to create a symbolic link. Additionally, the attacker must swap the target file with a symbolic link in the exact window after the `Root.Chmod` function checks its target but before acting. Due to these conditions, this flaw has been rated with a moderate severity.",
          "title": "Statement"
        },
        {
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          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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        {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.