CVE-2026-23879Disclosure

LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

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0.5/ 10 priority

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 2 signals
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-06-19); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters86d
Disclosure
#CVE-2026-23879 - Critical RCE in Py7zr. #Arbitrary file write via symbolic link chains allows escape from destination directory. #CVSS 8.0. No patch available. Update or avoid extraction of untrusted #7z archives. #CVEAlert #infosec #Python More detailed FREE info: https://www.valtersit.com/cve/CVE-2026-23879
Post summary
The post announces a critical RCE vulnerability in Py7zr, describes the exploit path via symbolic link chains, offers a CVSS score, and recommends avoiding extraction of untrusted 7z archives as a workaround.
0000067
965 followersView on X
DailyCVE@dailycve91d
Disclosure
🔴 py7zr, Arbitrary File Write via Symlink Chain Traversal, #CVE-2026-23879 (High) -DC-Jun2026-490 https://dailycve.com/py7zr-arbitrary-file-write-via-symlink-chain-traversal-cve-2026-23879-high-dc-jun2026-490/
Post summary
Py7zr has a newly disclosed arbitrary file write vulnerability (CVE-2026-23879) identified by symlink chain traversal, marked as High severity.
0000034
213 followersView on X

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