CVE-2026-54633
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In PoDoFo from version 1.0.0 to 1.1.1, processing a crafted PDF with an Indexed color-space image can cause a heap out-of-bounds read in PdfColorSpaceFilterIndexed::FetchScanLine. PODOFO_INVARIANT does not perform a runtime check, so a pixel index greater than or equal to m_MapSize can address beyond m_lookup. Additionally, validation of hival uses an incorrect conjunction and no upper bound, allowing malformed Indexed color-space metadata outside the expected range.
Risk Assessment
Out-of-bounds read can disclose adjacent heap data or crash the processing application, potentially leading to information leakage or service disruption.
Recommendation
Update PoDoFo to version 1.1.1 or later, which includes the fix.
Other vulnerabilities in PoDoFo
See all- CVE-2017-8787High
The PoDoFo::PdfXRefStreamParserObject::ReadXRefStreamEntry function in PoDoFo 0.9.5 allows remote attackers to cause a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted PDF file.
- CVE-2017-6844High
Buffer overflow in the PoDoFo::PdfParser::ReadXRefSubsection function in PdfParser.cpp in PoDoFo 0.9.4 allows remote attackers to have unspecified impact via a crafted file.
- CVE-2017-6843High
A heap-based buffer overflow in the PoDoFo::PdfVariant::DelayedLoad function in PdfVariant.h in PoDoFo 0.9.4 allows remote attackers to exploit it via a crafted file.
- CVE-2017-5886High
In PoDoFo 0.9.4, there is a heap-based buffer overflow in the PoDoFo::PdfTokenizer::GetNextToken function, allowing remote attackers to have unspecified impact via a crafted file.
- CVE-2017-5853High
Integer overflow in base/PdfParser.cpp in PoDoFo 0.9.4 allows remote attackers to have unspecified impact via a crafted file.
- CVE-2017-8378Critical
Heap-based buffer overflow in the PdfParser::ReadObjects function in PoDoFo 0.9.5 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
- CVE-2015-8981Critical
Heap-based buffer overflow in the PdfParser::ReadXRefSubsection function in PoDoFo allows attackers to have unspecified impact via vectors related to m_offsets.size.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS