HOMEVULNERABILITIESCVE-2026-8454
MEDIUM

CVE-2026-8454

CWE-787Published: May 15, 2026· Updated: May 18, 2026

5.3
CVSS v3.1
EPSS:0.00%probability of exploitation in 30 daysPercentile:0.2th

Official Description

Imager::File::GIF versions through 1.002 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files.

Imager::File::GIF's i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF's global screen width 'SWidth' and reuses it across every image in the file.

The page-match branch validates Image.Width + Image.Left > SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.

NVD Source

Technical Analysis

CVE-2026-8454 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Affected Vendors & Products

tonyc1 product
imager\
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patch
ADVISORYhttp://www.openwall.com/lists/oss-security/2026/05/15/15

All References (3)

→
https://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patchPatch
→
https://metacpan.org/release/TONYC/Imager-File-GIF-1.003/source/ChangesRelease Notes
→
http://www.openwall.com/lists/oss-security/2026/05/15/15Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2026-8454
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
EPSS (30d)0.00%
Affected1 vendor
PublishedMay 15, 2026

Related CVEs (CWE-787)

CVE-2026-4746
10.0
CVE-2026-42369
10.0
CVE-2026-7840
9.8
CVE-2026-48689
9.8
CVE-2026-48773
9.8
CVE-2026-9698
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-8454 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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