CVE-2026-122330
Last modified
CVE-2026-122330 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Blosc c-blosc2 before 3.5.0 contains a divide-by-zero vulnerability in blosc2_schunk_get_slice_buffer() in blosc/schunk.c that allows attackers to crash applications by supplying crafted frames with unchecked zero chunksize or blocksize values. Attackers can provide a malicious Blosc2 frame opened via blosc2_schunk_open() or blosc2_schunk_from_buffer() and read as a slice, raising SIGFPE and terminating the process..
Description
Blosc c-blosc2 before 3.5.0 contains a divide-by-zero vulnerability in blosc2_schunk_get_slice_buffer() in blosc/schunk.c that allows attackers to crash applications by supplying crafted frames with unchecked zero chunksize or blocksize values. Attackers can provide a malicious Blosc2 frame opened via blosc2_schunk_open() or blosc2_schunk_from_buffer() and read as a slice, raising SIGFPE and terminating the process.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Blosc | c-blosc2 | < 3.5.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-122330?
How severe is CVE-2026-122330?
How do I fix CVE-2026-122330?
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-2026-122325fossasia eventyay-exhibition through commit f68888e contains…3.1
- CVE-2026-122326Chevereto before 4.5.8 contains an authorization bypass vuln…5.3
- CVE-2026-122327Meelo through 3.13.1 contains a missing authorization vulner…4.3
- CVE-2026-122328SDL_mixer 3.1.2 through 3.2.4 contains a stack-based buffer …7.8
- CVE-2026-122329SDL_mixer 3.1.2 through 3.2.4 contains a stack-based buffer …7.8
- CVE-2026-12233The PSA Protected Storage credential backend (subsys/net/lib…5.9
- CVE-2026-12234The userspace syscall verifiers z_vrfy_zsock_sendmsg() and z…7.8
- CVE-2026-12235The Linkable Loadable Extensions (llext) subsystem mis-handl…6.3
- CVE-2026-12236The Bluetooth host GATT client function parse_read_std_char_…6.5
- CVE-2026-12238The WP Go Maps – Most Popular Map Plugin plugin for WordPres…5.3
- CVE-2026-1224Tanium addressed an uncontrolled resource consumption vulner…6.5
- CVE-2026-12240The Export User Data plugin for WordPress is vulnerable to a…8
Are you affected by CVE-2026-122330?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST