CVE-2026-95115

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-10-13. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Elevated

Also known asEUVD-2026-98806 (ENISA EUVD) · GHSA-9f4q-6c78-chwx (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
EPSS PROB
0.5%
EPSS %ILE
46th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 13, 2026

Last Modified

October 16, 2026

Advisory Details (4)

Auto-updated Oct 14, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

CVE-2026-95115 libwebsockets OOB write in LEJP index stack (i[64]) · GitHub

https://gist.github.com/1820893135-pixel/d4246b2ecc927193ea1fad50810e9901
Web page

[Bug]LEJP incremental JSON parser index-stack off-by-one: i[64]=0 writes past uint16_t i[64] into the adjacent wild array (CWE-787) · Issue #3663 · warmcat/libwebsockets · GitHub

https://github.com/warmcat/libwebsockets/issues/3663
GitHub commit

commit c404a205a983 (warmcat/libwebsockets)

Fix landed in warmcat/libwebsockets commit c404a205a983 — awaiting tagged release

https://github.com/warmcat/libwebsockets/commit/c404a205a98323a7f60e69fae532c5d26bf4a62a
GitHub commit

commit 736a4a26fce3 (warmcat/libwebsockets)

Fix landed in warmcat/libwebsockets commit 736a4a26fce3 — awaiting tagged release

https://github.com/warmcat/libwebsockets/commit/736a4a26fce344766bc6618df87bf32193829dd0

Vendor Advisories for CVE-2026-95115(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libwebsockets4.1.6-3 ... 4.3.5-7 (17 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libwebsockets4.3.5-1 ... 4.3.5-7 (11 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libwebsockets4.3.5-1 ... 4.3.5-7 (8 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 37× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  2. 2026-11-12 15:34 UTCEchelonGraph re-scored
  3. 2026-11-12 15:34 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  5. 2026-11-11 07:51 UTCEchelonGraph re-scored
  6. 2026-11-11 07:51 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-11-10 16:46 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  8. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  9. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  10. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  11. 2026-11-06 16:40 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  12. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  13. 2026-11-04 23:04 UTCEchelonGraph re-scored
  14. 2026-11-04 23:04 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  16. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  17. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  18. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  19. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  20. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  21. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  22. 2026-10-29 14:17 UTCEchelonGraph re-scored
  23. 2026-10-29 14:17 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  25. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
Show 27 more
  1. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-10-25 13:49 UTCEchelonGraph re-scored
  4. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-10-23 04:55 UTCEchelonGraph re-scored
  7. 2026-10-23 04:55 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-10-18 02:58 UTCEchelonGraph re-scored
  14. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-16 20:08 UTCEchelonGraph re-scored
  16. 2026-10-16 20:08 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-14 14:28 UTCEchelonGraph re-scored
  21. 2026-10-14 14:28 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx
  22. 2026-10-14 13:41 UTCEchelonGraph re-scoredFirst assessed: 7.5 HIGH
  23. 2026-10-14 13:40 UTCGHSA enrichmentGHSA-9f4q-6c78-chwx
  24. 2026-10-14 13:39 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  25. 2026-10-13 15:24 UTCNVD update
  26. 2026-10-13 14:32 UTCEchelonGraph re-scored
  27. 2026-10-13 14:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-95115?
CVE-2026-95115 is a high-severity vulnerability; its CVE record was published on October 13, 2026. Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser
When was the CVE record for CVE-2026-95115 published?
The CVE record for CVE-2026-95115 was published on October 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-95115 actively exploited?
CVE-2026-95115 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-95115?
CVE-2026-95115 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-95115?
An upstream fix for CVE-2026-95115 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-95115 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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