Code execution via PNM tokenizer off-by-one
Published Jul 6, 2026 · Updated Jul 6, 2026
Stack buffer overflow in GIMP on Red Hat Enterprise Linux 7 through 9 allows local users to execute code via a crafted PNM file. In file-pnm.c, pnmscanner_gettoken() lets ctr reach the 512-byte buffer size before writing a null terminator to buf[ctr], corrupting one byte beyond the stack allocation. Exploitation requires a local user and target-user interaction to open the malicious image; the result is a GIMP crash or code execution in the target user's context.
Summary
What happened
Stack buffer overflow in GIMP on Red Hat Enterprise Linux 7 through 9 allows local users to execute code via a crafted PNM file. In file-pnm.c, pnmscanner_gettoken() lets ctr reach the 512-byte buffer size before writing a null terminator to buf[ctr], corrupting one byte beyond the stack allocation. Exploitation requires a local user and target-user interaction to open the malicious image; the result is a GIMP crash or code execution in the target user's context.
The record
- CVE
- CVE-2026-58380
- Published
- Jul 6, 2026
- Updated
- Jul 6, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 7
- Classifications
- CWE-193, T1204.002
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2026CVE publishedPublication date reported by the CVE source.
- Jul 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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