PoDoFo up to 1.1.0 Index Color Space PdfColorSpaceFilter.cpp FetchScanLine out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k1.17-

Summaryinfo

A vulnerability, which was classified as critical, was found in PoDoFo up to 1.1.0. Affected by this vulnerability is the function PdfColorSpaceFilterIndexed::FetchScanLine of the file src/podofo/main/PdfColorSpaceFilter.cpp of the component Index Color Space Handler. The manipulation results in out-of-bounds. This vulnerability is known as CVE-2026-54633. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in PoDoFo up to 1.1.0. It has been classified as critical. Affected is the function PdfColorSpaceFilterIndexed::FetchScanLine of the file src/podofo/main/PdfColorSpaceFilter.cpp of the component Index Color Space Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-54633 since 06/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 1.1.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PoDoFo 1.1.1

Timelineinfo

06/15/2026 CVE reserved
09/17/2026 +94 days Advisory disclosed
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-54633 (🔒)
GCVE (CVE): GCVE-0-2026-54633
GCVE (VulDB): GCVE-100-407220

Entryinfo

Created: 09/17/2026 23:52
Changes: 09/17/2026 23:52 (69)
Complete: 🔍
Cache ID: 216::103

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