CVE-2026-10118: Poppler: integer overflow in poppler splashoutputdev::tilingpatternfill leads to heap buffer overflow via unchecked dimension multiplication

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-10-02
Weakness: CWE-190

Description

A flaw was found in Poppler's Splash backend. A remote attacker could exploit this vulnerability by crafting a malicious PDF file that, when rendered, triggers an integer overflow in the `tilingPatternFill` function. This overflow leads to an undersized heap memory allocation, allowing a subsequent out-of-bounds write. Successful exploitation could result in arbitrary code execution, information disclosure, or denial of service within the context of the application processing the PDF.

Affected products

Red Hat AI Inference Server 3.3: all versions — fixed in 1782352847, 1782352919, 1782352950, 1782353093
Red Hat Enterprise Linux 10: all versions — fixed in 0:24.02.0-7.el10_2.2
Red Hat Enterprise Linux 10.0 Extended Update Support: all versions — fixed in 0:24.02.0-7.el10_0.1
Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:0.22.5-7.el7_9, 0:0.26.5-44.el7_9
Red Hat Enterprise Linux 8: all versions — fixed in 0:20.11.0-14.el8_10
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:20.11.0-2.el8_4.3
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: all versions — fixed in 0:20.11.0-2.el8_4.3
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 0:20.11.0-5.el8_6.1
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: all versions — fixed in 0:20.11.0-5.el8_6.1
Red Hat Enterprise Linux 8.8 Telecommunications Update Service: all versions — fixed in 0:20.11.0-7.el8_8.1
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions: all versions — fixed in 0:20.11.0-7.el8_8.1
Red Hat Enterprise Linux 9: all versions — fixed in 0:21.01.0-24.el9_8.1
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:21.01.0-15.el9_2.1
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: all versions — fixed in 0:21.01.0-20.el9_4.1
Red Hat Enterprise Linux 9.6 Extended Update Support: all versions — fixed in 0:21.01.0-22.el9_6.1
Red Hat Hardened Images: all versions — fixed in 26.06.0-0.1.hum1
Red Hat OpenShift AI 3.4: all versions — fixed in 1790703542

How to fix

Upgrade to a fixed version: Red Hat AI Inference Server 3.3 1782352847, 1782352919, 1782352950, 1782353093; Red Hat Enterprise Linux 10 0:24.02.0-7.el10_2.2; Red Hat Enterprise Linux 10.0 Extended Update Support 0:24.02.0-7.el10_0.1; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:0.22.5-7.el7_9, 0:0.26.5-44.el7_9; Red Hat Enterprise Linux 8 0:20.11.0-14.el8_10; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:20.11.0-2.el8_4.3; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:20.11.0-2.el8_4.3; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:20.11.0-5.el8_6.1; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:20.11.0-5.el8_6.1; Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:20.11.0-7.el8_8.1; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:20.11.0-7.el8_8.1; Red Hat Enterprise Linux 9 0:21.01.0-24.el9_8.1. Check the vendor advisory for mitigations.

References

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