CVE-2026-119207: Rapid mlx · pypdf has possible large memory usage for exceptions in strict mode
Affects rapid-mlxSource GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 6.21.3 : patch rapid-mlx soon.
Data as of 31 Oct 2026, 16:23 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 4.0 | 7.1 |
|---|
- Patch
- Available – fixed in 6.21.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewrapid-mlxpkg:brew/rapid-mlxOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to pypdf version 6.21.3 or later, where this vulnerability is fixed. If upgrading is not immediately possible, apply the changes from pull request #4265 as a temporary workaround to mitigate the issue.
Description
CVE-2026-119207 is a high-severity vulnerability in pypdf that allows an attacker to craft a malicious PDF causing large memory usage when an invalid dictionary is loaded in strict mode. This can lead to resource exhaustion. The issue has been fixed in pypdf version 6.21.3. Users unable to upgrade immediately can apply the changes from the referenced pull request as a workaround.
References
- github.com/py-pdf/pypdf/security/advisories/GHSA-4vqv-7265-gm2w (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-119207 (opens in a new tab)
- github.com/py-pdf/pypdf/pull/4265 (opens in a new tab)
- github.com/py-pdf/pypdf/commit/64270258c0eced720f7960aecf8cef31afd39f8d (opens in a new tab)
- github.com/py-pdf/pypdf (opens in a new tab)
- github.com/py-pdf/pypdf/releases/tag/6.21.3 (opens in a new tab)