An issue was discovered in GNOME GLib before 2.66.8.
Priority LOW 29CWE-59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Partial Red Hat: 3 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also creates the target of the symlink as an empty file, which could conceivably have security relevance if the symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents of that file correctly remain unchanged.)
Why it matters now
EPSS 0.02708 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 3 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:* | before 2.66.8 | Vulnerable | GNOME |
| cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Broadcom |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
- cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:* Versions before 2.66.8 Vulnerable ·GNOME
- cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Broadcom
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
Remediation
Red Hat 2 advisories
- RHSA-2022:8418 Released 2022-11-15 · Red Hat rating Lowmingw-glib2 security and bug fix update
- Red Hat CodeReady Linux Builder (v. 9) mingw-glib2-2.70.1-2.el9, mingw32-glib2-2.70.1-2.el9, mingw32-glib2-static-2.70.1-2.el9 +2
- RHSA-2021:4385 Released 2021-11-09 · Red Hat rating Moderateglib2 security and bug fix update
- Red Hat CodeReady Linux Builder (v. 8) glib2-doc-2.56.4-156.el8, glib2-static-2.56.4-156.el8
- Red Hat Enterprise Linux BaseOS (v. 8) glib2-2.56.4-156.el8, glib2-devel-2.56.4-156.el8, glib2-fam-2.56.4-156.el8 +1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:4385 |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2022:8418 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:4385 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28153
- 2026-10-03 Alias added: GHSA-9hh6-p5c5-mmmf
References
Sources
- CVE-2021-28153 · CVE Program
- CVE-2021-28153 · NVD
- FIRST EPSS
- GHSA-9hh6-p5c5-mmmf · GitHub Advisory Database · CC BY 4.0
- CVE-2021-28153 · Red Hat security data · CC BY 4.0
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