LOW
CVE-2026-49460
CWE-407Published: June 22, 2026· Updated: Jun 25, 2026
3.3
CVSS v3.1
EPSS:0.13%probability of exploitation in 30 daysPercentile:2.6th
Official Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor. This vulnerability is fixed in 6.12.2.
Technical Analysis
CVE-2026-49460 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Vendors & Products
pypdf_project1 product
pypdf
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (3)
→
https://github.com/py-pdf/pypdf/pull/3806Issue Tracking · Patch
→
https://github.com/py-pdf/pypdf/releases/tag/6.12.2Patch · Release Notes
→
https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hgr-hg42-57jgPatch · Vendor Advisory
Quick Facts
CVE IDCVE-2026-49460
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-407
CISA KEVNo
EPSS (30d)0.13%
Affected1 vendor
PublishedJun 22, 2026
Related CVEs (CWE-407)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-49460 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.