The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which…
Priority LOW 38CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which allows remote attackers to cause a denial of service (stack consumption and segmentation fault) or possibly have unspecified other impact via a PDF document with a deep data structure, as demonstrated by a crash in QPDFObjectHandle::parseInternal in libqpdf/QPDFObjectHandle.cc.
Why it matters now
EPSS 0.01804 78th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qpdf_project:qpdf:6.0.0:*:*:*:*:*:*:* | 6.0.0 | Vulnerable | Qpdf Project |
| cpe:2.3:a:qpdf_project:qpdf:7.0.b1:*:*:*:*:*:*:* | 7.0.b1 | Vulnerable | Qpdf Project |
- cpe:2.3:a:qpdf_project:qpdf:6.0.0:*:*:*:*:*:*:* Versions 6.0.0 Vulnerable ·Qpdf Project
- cpe:2.3:a:qpdf_project:qpdf:7.0.b1:*:*:*:*:*:*:* Versions 7.0.b1 Vulnerable ·Qpdf Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12595
- 2026-10-03 Alias added: GHSA-q7vh-x7xx-x6hx
References
More Qpdf Project Qpdf vulnerabilities
- TI-2024-16045 Heap Buffer Overflow vulnerability in qpdf 11.9.0 allows attackers to crash the… CVSS 3.1MEDIUM 5.5
- TI-2021-07868 An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute… CVSS 3.1MEDIUM 5.3
- TI-2018-07028 libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found… CVSS 3.0HIGH 7.8
- TI-2022-15389 QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function… CVSS 3.1MEDIUM 6.5
- TI-2017-06661 libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite… CVSS 3.0MEDIUM 5.5
- TI-2017-06660 libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite… CVSS 3.0MEDIUM 5.5
Sources
- CVE-2017-12595 · CVE Program
- CVE-2017-12595 · NVD
- FIRST EPSS
- GHSA-q7vh-x7xx-x6hx · GitHub Advisory Database · CC BY 4.0
- CVE-2017-12595 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences