SUSE · Security update for python-py7zr
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.0 High : upgrade SUSE py7zr to 1.1.3 soon.
Data as of 1 Nov 2026, 11:02 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.1.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Jun 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 1 Nov 2026.
What to do
Upgrade py7zr to 1.1.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| miurahrpy7zr | Affected
| Fixed in
|
PyPIpy7zrpkg:pypi/py7zrOther 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
If you cannot patch yet, avoid extracting untrusted .7z archives with python-py7zr to reduce risk.
Description
This security update for python-py7zr addresses three vulnerabilities: CVE-2026-23879 allows arbitrary file write via crafted malicious symbolic link chains in an archive; CVE-2026-55195 involves unchecked extraction size that can cause denial of service; and CVE-2026-55206 involves a crafted .7z archive with a large numstreams value that can also cause denial of service. These issues have been publicly disclosed and are rated with high severity.
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21159-1.json (opens in a new tab)
- bugzilla.suse.com/1268665 (opens in a new tab)
- bugzilla.suse.com/1268666 (opens in a new tab)
- bugzilla.suse.com/1268669 (opens in a new tab)
- suse.com/security/cve/CVE-2026-23879/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-55195/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-55206/ (opens in a new tab)