Medium 6.9Published Sep 17, 2026

CVE-2026-54633PoDoFo: Heap Out-of-Bounds Read in Indexed Color Space Image Decoding (FetchScanLine)

Updated under an hour ago (2026-10-19 06:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

PoDoFo is a C++17 PDF manipulation library. From version 1.0.0 until 1.1.1, processing a crafted PDF with an Indexed color-space image can cause a heap out-of-bounds read in PdfColorSpaceFilterIndexed::FetchScanLine in src/podofo/main/PdfColorSpaceFilter.cpp. PODOFO_INVARIANT does not perform a runtime check, so a pixel index greater than or equal to m_MapSize can address beyond m_lookup. PdfColorSpaceFilterFactory::TryCreateFromObject also validates hival with an incorrect conjunction and no upper bound, allowing malformed Indexed color-space metadata outside the expected range. The resulting read can disclose adjacent heap data or crash the processing application. This issue is fixed in version 1.1.1.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

podofo podofo podofo:podofo (from the name)	from 1.0.0, < 1.1.1	CNA record

References

https://github.com/podofo/podofo/security/advisories/GHSA-f3j2-7846-h5ggx-refsource-confirm
https://github.com/podofo/podofo/commit/999c519d285c4a65eba48409d9cd2da9d4743ccax-refsource-misc
https://github.com/podofo/podofo/releases/tag/1.1.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.