CVE-2026-119196: Glances · pyasn1 has quadratic CPU consumption in constructed BIT STRING decoding
Affects glancesSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade to 4.3.3_1 or 3.1.6.2 soon.
Data as of 31 Oct 2026, 16:08 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.5 |
|---|
- Patch
- Available – fixed in 4.3.3_1, 3.1.6.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation 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
Upgrade glances to 4.3.3_1 or 3.1.6.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewglancespkg:brew/glancesOther 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
A patch is available and fixed versions include 3.1.6.2 and 4.3.3_1. Users should upgrade to these or later versions to remediate the vulnerability. No additional mitigation is required if the application uses these fixed versions.
Description
CVE-2026-119196 is a high-severity vulnerability in the pyasn1 library used by Glances, where decoding constructed BIT STRING values with many fragments causes quadratic CPU consumption. This can lead to CPU exhaustion and denial of service when processing attacker-controlled ASN.1 data. The issue affects BER and CER decoders and certain schema-driven DER decoding paths. The vulnerability is fixed in pyasn1 versions 3.1.6.2 and 4.3.3_1.
References
- github.com/pyasn1/pyasn1/security/advisories/GHSA-2qm8-x737-gmw5 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-119196 (opens in a new tab)
- github.com/pyasn1/pyasn1/pull/132 (opens in a new tab)
- github.com/pyasn1/pyasn1/commit/73ba7b043cc7e92cb37f16f2c955bff93b0e6f6c (opens in a new tab)
- github.com/pyasn1/pyasn1 (opens in a new tab)
- github.com/pyasn1/pyasn1/releases/tag/v0.6.5 (opens in a new tab)