EM-20261103-J9I2 VulnerabilityHigh severity

Stanza Vulnerability (CVE-2026-115878)

CVE-2026-115878

Status

Developing

Since Nov 03 21:17 UTC: signals keep joining.

First Signal: Nov 03 20:29 UTCC26 GitHub Advisory Database
Page Born: Nov 03 21:17 UTCsecond source joined
Last Signal: Nov 03 21:17 UTC20 hours before snapshot
Sources: 20 official · 2 research, news or crowd
Open For: 18 hoursso far

Life Of This Page

1
Born

Nov 03 21:17 UTC
A second, independent source names it.
2
Developing · Now

Nov 03 21:17 UTC
New signals join; severity can move.
3
Confirmed

Not yet
CISA KEV lists it, or exploitation in the wild is reported.
4
Resolved

Not yet
Past the fix deadline and 14 days with no new signal.
5
Archived

Not yet
30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The address and ID never change. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Vulnerability Lifecycle

Disclosed: reached

Nov 03 21:17 UTC
C6 NVD published
Scored: reached

Nov 03 21:17 UTC
CVSS 7.8 · EPSS 0.6%
Exploited: not yet

Not yet
No exploitation reported
Advisories: not yet

Not yet
None yet
Vendor Response: not yet

Not yet
None in sources yet
Resolved: not yet

Not yet
After 14 quiet days

Timeline

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

Signals

Nov 03 21:17 UTCCVE-2026-115878 (CVSS 7.8) (opens source in a new tab) Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. From 1.14.0 until 1.15.0, loading an attacker-supplied lemmatizer checkpoint can execute arbitrar… High severityDatabaseC6 NVD CVE API 2.0
Nov 03 20:29 UTCGHSA-gh9r-c94j-cmp5 / CVE-2026-115878: Stanza: RCE via pickle deserialization in the lemmatizer (opens source in a new tab) pip:stanza High severityDatabaseC26 GitHub Advisory Database