CVE-2026-58384
A flaw was found in GIMP's PSD parser. An integer overflow in read_RLE_channel() can cause an undersized heap allocation for the RLE row-length table, after which subsequent per-row writes corrupt heap memory. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution.
Executive briefing
The source record describes: A flaw was found in GIMP's PSD parser. An integer overflow in read_RLE_channel() can cause an undersized heap allocation for the RLE row-length table, after which subsequent per-row writes corrupt heap memory. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution. The practical risk depends on whether an affected product/version is present, reachable and configured in an exploitable way. Review the affected-product evidence and linked vendor advisories before assigning exposure status.
Evidence confidence: Moderate Evidence-derived, not an exploitability verdict
Severity & attack characteristics
CVSS vector:CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Technical explanation & impact
The technical mechanism is not expanded beyond the source description unless a referenced advisory supplies additional evidence. Read the linked vendor/CERT advisories for root-cause detail.
Potential impact must be interpreted from the published CVSS impact metrics and the affected component. A CVSS impact score is not proof that a particular asset is exploitable.
Weakness classification
CWE-190Affected products and versions
Products below are parsed from NVD vulnerable CPE configuration entries. Version boundaries are shown as published; verify applicability with the vendor.
| Vendor | Product | Version evidence |
|---|---|---|
| gimp | gimp | CPE version 3.2.4 |
| redhat | enterprise_linux | CPE version 9.0 |
Remediation & validation
- Identify exposure by comparing the affected product and version ranges with your asset inventory, SBOM and externally exposed services.
- Review the linked vendor security advisory or patch notes. Upgrade to a vendor-confirmed fixed release; do not infer a fixed version from the CVE description.
- Until patched, consider restricting network access or disabling the affected feature where operationally safe. These are temporary controls, not a substitute for a vendor fix.
- Validate the remediation with a version check and vulnerability rescan, then retain change evidence.
No fixed version is displayed unless it is explicitly established by a vendor advisory. Follow the vendor's release notes for exact product and branch applicability.
Vendor advisories, patches & exploit references
- https://access.redhat.com/errata/RHSA-2026:40751 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:73768 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:80509 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:93589 VENDOR secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-58384 ADVISORY secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2497431 ADVISORY secalert@redhat.com
- https://gitlab.gnome.org/GNOME/gimp/-/commit/da29e217 REFERENCE secalert@redhat.com
- https://gitlab.gnome.org/GNOME/gimp/-/issues/16216 EXPLOIT secalert@redhat.com