CVE-2026-61449
Last modified
CVE-2026-61449 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding system.gpm.archive.max_uncompressed_size before extraction.
Description
Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding system.gpm.archive.max_uncompressed_size before extraction. Because this declared size is attacker-forgeable and is not cross-checked against the actual inflated stream, a crafted archive declaring tiny per-entry sizes passes the cap while extractTo() writes the real, much larger content, filling disk or exhausting inodes. The archive must be supplied by a package source or admin upload (admin/operator trust). Fixed in 2.0.2. This is an incomplete fix for GHSA-928x-9mpw-8h56.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| getgrav | grav | < 2.0.2 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-61449?
How severe is CVE-2026-61449?
How do I fix CVE-2026-61449?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-61443PraisonAI before 1.6.78 contains a remote code execution vul…8.6
- CVE-2026-61444PraisonAI versions before 4.6.78 contain a code injection vu…9.4
- CVE-2026-61445PraisonAI before 4.6.78 contains arbitrary file write and co…9.9
- CVE-2026-61446PraisonAI (praisonaiagents) before 1.6.78 contains a remote …8.6
- CVE-2026-61447PraisonAI before 1.6.78 contains a remote code execution vul…10
- CVE-2026-61448Parse Server is affected by a stored cross-site scripting (X…2.1
- CVE-2026-6145The User Registration & Membership plugin for WordPress is v…5.3
- CVE-2026-61450Grav before 2.0.2 contains a Twig sandbox bypass that allows…7.1
- CVE-2026-61451The Grav API plugin (grav-plugin-api) before 1.0.4 does not …9.6
- CVE-2026-61452The Grav API plugin (getgrav/grav-plugin-api) before 2.0.4 c…6.9
- CVE-2026-61453Grav v2.0.0 contains a cross-site scripting vulnerability (f…6.1
- CVE-2026-61454The Grav Admin2 plugin (getgrav/grav-plugin-admin2) before 2…8.7
Are you affected by CVE-2026-61449?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST