CVE-2026-57112

HIGHPre-NVD 8.38.3
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (12th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-78424 (ENISA EUVD) · GHSA-vmf9-xx9w-86wx (GitHub Security Advisories)Source: ENISA EUVD

8.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (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: 0.2%CVSS: 8.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

PraisonAI is a multi-agent teams system. From praisonaiagents 0.6.0 until 1.6.59 and PraisonAI 3.10.0 until 4.6.59, ToolsMCPServer.run_sse() in src/praisonai-agents/praisonaiagents/mcp/mcp_server.py mounts SseServerTransport on the legacy /sse and /messages/ endpoints without default Host, Origin, or authentication enforcement. A malicious website can use DNS rebinding against a reachable local or internal SSE server, supply attacker-controlled Host and Origin headers, enumerate registered tools, and invoke them with the server user's privileges. The Streamable HTTP transport rejects the same hostile Origin, which isolates the flaw to the legacy SSE wrapper. An initial remediation was released in praisonaiagents 1.6.59 and PraisonAI 4.6.59.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
53
EG Risk 53/100

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)
Severity83% × 45%
Impact severity (EG Severity): CVSS 8.3 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
12th
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 (8.3): severity, escalated by confirmed exploitation. This CVE's 8.3 is its impact severity (EG Severity), not escalated.

EG Severity
8.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

June 18, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

PraisonAI v4.6.59

Patch available: MervinPraison/PraisonAI v4.6.59

https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59
GitHub commit Patch Available

commit 2adfe7e8323f (MervinPraison/PraisonAI)

Patch available: MervinPraison/PraisonAI v4.6.144 (contains commit 2adfe7e8323f)

https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9
GitHub advisoryMentions a patch (unverified)

ToolsMCPServer Legacy SSE Transport Accepts Attacker Host/Origin and Exposes Registered Tools · Advisory · MervinPraison/PraisonAI · GitHub

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vmf9-xx9w-86wx

Vendor Advisories for CVE-2026-57112(1)

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

Affected Packages

(2 across 1 ecosystem)
PyPI(2)
PackageVulnerable rangeFix by version rangeDependents
praisonai3.10.0 ... 4.6.9 (243 versions)
  • 3.10.0 up to 4.6.59: fixed in 4.6.59
—
praisonaiagents0.10.0 ... 1.6.9 (347 versions)
  • 0.6.0 up to 1.6.59: fixed in 1.6.59
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 38× 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 it from the CNA feed. 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). Most recent first.

  1. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-25 14:17 UTCEG score recompute
  5. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-23 01:33 UTCEG score recompute
  8. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-18 03:29 UTCEG score recompute
  13. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-16 15:20 UTCEG score recompute
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-12 15:54 UTCEG score recompute
  21. 2026-10-11 19:37 UTCEG score recompute
  22. 2026-10-11 16:53 UTCEG score recompute
  23. 2026-10-11 14:15 UTCEG score recompute
  24. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 29 more
  1. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  2. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  3. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  4. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  5. 2026-10-06 11:44 UTCOSV refresh
  6. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  7. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  8. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  9. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  10. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  11. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  12. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  13. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  14. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  15. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  16. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  17. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  19. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-09-16 18:27 UTCEG score recompute
  22. 2026-09-16 18:02 UTCEG score recompute
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-09-15 11:30 UTCEG score recompute
  26. 2026-07-30 22:33 UTCEG score recompute
  27. 2026-07-26 18:46 UTCEG score recompute
  28. 2026-07-23 03:20 UTCEG score recompute
  29. 2026-07-20 21:35 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-57112?
CVE-2026-57112 is a high-severity vulnerability; its CVE record was published on June 18, 2026. PraisonAI is a multi-agent teams system. From praisonaiagents 0.6.0 until 1.6.59 and PraisonAI 3.10.0 until 4.6.59, ToolsMCPServer.runsse() in src/praisonai-agents/praisonaiagents/mcp/mcpserver.py mounts SseServerTransport on the legacy /sse and /messages/ endpoints without default Host, Origin, or…
When was the CVE record for CVE-2026-57112 published?
The CVE record for CVE-2026-57112 was published on June 18, 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 September 16, 2026; the record at its source may have been updated since.
Is CVE-2026-57112 actively exploited?
CVE-2026-57112 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57112?
CVE-2026-57112 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57112?
A fix for CVE-2026-57112 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-57112 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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