DailyCVE@dailycve
🔴 pypdf, Excessive Memory Consumption, #CVE-2026-119209 (High) -DC-Oct2026-4040 https://dailycve.com/pypdf-excessive-memory-consumption-cve-2026-119209-high-dc-oct2026-4040/
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CVE-2026-119209(pypdf_project / pypdf)
LOWCVSS 5.5 · MEDIUMSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can consume excessive memory while opening a crafted PDF containing cross-reference streams that declare very large entry counts. Highly compressible streams and /Prev chains can multiply the number of parsed entries across a document, while negative /Index counts can bypass the existing per-stream clamp. This issue is fixed in version 6.21.3.
0.0/ 10 priority
Sources & remediation
Patch / fix
Other references
Weakness type (CWE)
CWE-400CWE-770
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
Are you affected?
If you run products in this scope, you should treat this CVE as relevant to your environment.
- pypdf
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day
Affected systems
Vendors
Products
pypdf
Deep dive
Activity timeline1 mentions / 1d
Referenced assets1 URL
Full discourse1 post
CPE platform detail1 entries
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | pypdf_project | pypdf | - | - | - |