Imager versions before 1.036 for Perl exit the process reading a TGA with a colour map length of 32768 or more in tga_palette_read

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93019
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-18 14:19:04 UTC
Updated2026-09-18 18:18:17 UTC
DescriptionImager versions before 1.036 for Perl exit the process reading a TGA with a colour map length of 32768 or more in tga_palette_read. The reader unpacks the two-byte colour map length into a signed short, so a length of 32768 or more becomes negative. tga_palette_read() casts that value to size_t and asks mymalloc() for a size near SIZE_MAX. The allocation fails and Imager's allocator calls exit(3). Reading an attacker-supplied file through Imager->read() triggers an uncatchable exit.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

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

EPSS: 0.006060000 probability, percentile 0.473660000 (date 2026-09-21)

Problem Types: CWE-196 | CWE-789 | CWE-196 CWE-196 Unsigned to Signed Conversion Error | CWE-789 CWE-789 Memory Allocation with Excessive Size Value

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

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

References

ReferenceSourceLinkTags
github.com/tonycoz/imager/security/advisories/GHSA-p4vw-rc54-p2c2 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
metacpan.org/release/TONYC/Imager-1.036/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
www.openwall.com/lists/oss-security/2026/09/18/9 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
github.com/tonycoz/imager/commit/74ed50e0625f9f51054e595bb4a8da92c1e0d57... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: router0mail (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-18T00:00:00.000ZVersion 1.036 released with fix.

Solutions

CNA: Upgrade to Imager 1.036 or later.

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