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CVE Record

CVE-2026-58015: Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

A flaw was found in GLib. The D-Bus client-side implementation of the DBUS_COOKIE_SHA1 SASL authentication mechanism does not validate the cookie_context parameter received from the server. A malicious D-Bus server can supply a cookie_context containing path traversal sequences, causing the client to read an arbitrary file and exfiltrate sensitive data by verifying guessed file contents against a generated hash.

MediumCVSS 5.9Not KEV-listedUpdated
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Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-22: File access and web shell behavior lookup

File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2026-58015 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
41Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.9CVSS 3.1MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N2.23.6redhat

Vulnerability scoring details

Base CVSS 3.1 score

5.9Medium
CVSS 3.1 vector shape for CVE-2026-58015Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GNOMEGLibGLib, 0unaffected
Red HatRed Hat Enterprise Linux 10glib2, 0:2.80.4-12.el10_2.21affected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Supportglib2, 0:2.80.4-4.el10_0.17affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportglib2, 0:2.56.1-13.el7_9.1affected
Red HatRed Hat Enterprise Linux 8mingw-glib2, 0:2.70.1-9.el8_10affected
Red HatRed Hat Enterprise Linux 8glib2, 0:2.56.4-177.el8_10affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportglib2, 0:2.56.4-10.el8_4.7affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onglib2, 0:2.56.4-10.el8_4.7affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportglib2, 0:2.56.4-158.el8_6.7affected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onglib2, 0:2.56.4-158.el8_6.7affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Serviceglib2, 0:2.56.4-165.el8_8.2affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionsglib2, 0:2.56.4-165.el8_8.2affected
Red HatRed Hat Enterprise Linux 9glib2, 0:2.68.4-19.el9_8.9affected
Red HatRed Hat Enterprise Linux 9glib2, 0:2.68.4-19.el9_8.9affected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutionsglib2, 0:2.68.4-7.el9_2.7affected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutionsglib2, 0:2.68.4-14.el9_4.8affected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Supportglib2, 0:2.68.4-16.el9_6.7affected
Red HatRed Hat OpenShift Container Platform 4.12rhcos, 412.86.202609171314-0affected
Red HatRed Hat OpenShift Container Platform 4.14openshift/ose-rhel-coreos-9, 414.92.202609282130-0affected
Red HatRed Hat OpenShift Container Platform 4.22openshift/ose-rhel-coreos-9, 4.22.9.8.202609081748-0affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/jetstack-cert-manager-acmesolver-rhel9, 1791371080affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/jetstack-cert-manager-rhel9, 1791371069affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/cert-manager-operator-rhel9, 1791788287affected
Red HatCert Manager support for Red Hat OpenShift release 1.17cert-manager/cert-manager-istio-csr-rhel9, 1791378395affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/jetstack-cert-manager-acmesolver-rhel9, 1791459707affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/jetstack-cert-manager-rhel9, 1791459711affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/cert-manager-istio-csr-rhel9, 1791459759affected
Red HatCert Manager support for Red Hat OpenShift release 1.18cert-manager/cert-manager-operator-rhel9, 1789029076affected
Red HatCert Manager support for Red Hat OpenShift release 1.19cert-manager/cert-manager-operator-rhel9, 1788348522affected
Red HatCert Manager support for Red Hat OpenShift release 1.19cert-manager/jetstack-cert-manager-acmesolver-rhel9, 1788348571affected
Weakness

CWE details

CWE-22

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-22 · source CWE mapping

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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