How many CVEs have patched safe_send?

32 published CVEs changed safe_send in sooperset/mcp-atlassian, in 1 distinct patches totalling 704 changed lines, between 2026 and 2026.

What is the latest CVE that changed safe_send?

CVE-2026-77246 (MCP Atlassian: MCP HTTP Client Server-Local File Exfiltration via Unvalidated Attachment Upload Path), published 2026-09-22, changed lines 472 to 493 of src/mcp_atlassian/servers/main.py.

How does safe_send compare to the rest of sooperset/mcp-atlassian?

sooperset/mcp-atlassian has 34 CVEs with a located fix in total; 32 of them changed safe_send.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

safe_send in sooperset/mcp-atlassian: Patched by 32 CVEs

MCP Atlassian: MCP HTTP Client Server-Local File Exfiltration via Unvalidated Attachment Upload Path

CVE-2026-77246 · lines 472–493 · +22 −0

High · CVSS 8.6

EPSS 0.4%2026-09-22

MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

CVE-2026-77248 · lines 472–493 · +22 −0

High · CVSS 8.6

EPSS 0.4%2026-09-22

MCP Atlassian: OAuth refresh-token backup file is world-readable under default Unix umask

CVE-2026-77256 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.3%2026-09-22

MCP Atlassian: Incomplete fix for CVE-2026-27826: redirect-based SSRF via unhooked requests session in Jira user-permission lookup

CVE-2026-77249 · lines 472–493 · +22 −0

Medium · CVSS 5.3

EPSS 0.3%2026-09-22

MCP Atlassian: Arbitrary file read via confluence_upload_attachment allows exfiltration of server credentials

CVE-2026-77259 · lines 472–493 · +22 −0

High · CVSS 7.7

EPSS 0.4%2026-09-22

MCP Atlassian: Insecure File Permissions on OAuth Token Storage

CVE-2026-77268 · lines 472–493 · +22 −0

Medium · CVSS 5.5

EPSS 0.1%2026-09-22

MCP Atlassian: Arbitrary server-local file upload to Jira/Confluence attachments via unrestricted file_path parameters

CVE-2026-77247 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.4%2026-09-22

MCP Atlassian: Reflected XSS in OAuth Setup Callback Handler

CVE-2026-77272 · lines 472–493 · +22 −0

Medium · CVSS 6.1

EPSS 0.2%2026-09-22

MCP Atlassian: Path traversal in upload_attachment allows arbitrary file read (incomplete fix for CVE-2026-27825)

CVE-2026-77269 · lines 472–493 · +22 −0

Medium · CVSS 6.5

EPSS 0.4%2026-09-22

MCP Atlassian: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call

CVE-2026-77266 · lines 472–493 · +22 −0

Medium · CVSS 6.5

EPSS 0.4%2026-09-22

MCP Atlassian: Arbitrary File Read & Exfiltration (Confused Deputy) in JIRA update_issue

CVE-2026-77255 · lines 472–493 · +22 −0

High · CVSS 8.6

EPSS 0.4%2026-09-22

MCP Atlassian: Path Traversal / Arbitrary File Read in confluence_upload_attachment MCP tool (incomplete fix of CVE-2026-27825)

CVE-2026-77262 · lines 472–493 · +22 −0

High · CVSS 8.6

EPSS 0.5%2026-09-22

MCP Atlassian: Unauthenticated HTTP MCP requests can use globally configured Jira and Confluence credentials

CVE-2026-77254 · lines 472–493 · +22 −0

Critical · CVSS 9.1

EPSS 0.6%2026-09-22

MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files

CVE-2026-77253 · lines 472–493 · +22 −0

High · CVSS 7.1

EPSS 0.4%2026-09-22

MCP Atlassian: HTTP upload tools accept arbitrary server-local file paths

CVE-2026-77257 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.4%2026-09-22

MCP Atlassian: SSRF redirect protection missing for basic-auth and OAuth authentication branches

CVE-2026-77261 · lines 472–493 · +22 −0

High · CVSS 8.5

EPSS 0.3%2026-09-22

MCP Atlassian: Arbitrary local file READ via unconstrained file_path in upload_attachment (Confluence + Jira)

CVE-2026-77260 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.3%2026-09-22

MCP Atlassian: Incomplete path traversal fix allows intra-CWD module overwrite and RCE (bypass of CVE-2026-27825)

CVE-2026-77271 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.5%2026-09-22

MCP Atlassian: Incomplete fix for CVE-2026-27826: DNS rebinding bypasses SSRF validation (validated IP not pinned)

CVE-2026-77242 · lines 472–493 · +22 −0

High · CVSS 7.5

EPSS 0.3%2026-09-22

MCP Atlassian: ENABLED_TOOLS / Toolset authorization bypass

CVE-2026-77243 · lines 472–493 · +22 −0

High · CVSS 8.8

EPSS 0.3%2026-09-22

MCP Atlassian: JIRA_PROJECTS_FILTER / CONFLUENCE_SPACES_FILTER allow forbidden-project content exfiltration (one LIVE-proven on Atlassian Cloud)

CVE-2026-77251 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.2%2026-09-22

MCP Atlassian: JIRA_PROJECTS_FILTER and CONFLUENCE_SPACES_FILTER can be bypassed in search tools

CVE-2026-77252 · lines 472–493 · +22 −0

Medium · CVSS 6.5

EPSS 0.3%2026-09-22

mcp-atlassian has an incomplete SSRF remediation

CVE-2026-77267 · lines 472–493 · +22 −0

High · CVSS 8.3

EPSS 0.3%2026-09-22

MCP Atlassian: OAuth fallback token storage writes plaintext access and refresh tokens with group-readable permissions

CVE-2026-77250 · lines 472–493 · +22 −0

Medium · CVSS 6.1

EPSS 0.1%2026-09-22

[mcp-atlassian] Authentication bypass in HTTP transport: AtlassianOpaqueTokenVerifier accepts any non-empty token

CVE-2026-77244 · lines 472–493 · +22 −0

Critical · CVSS 10.0

EPSS 0.3%2026-09-22

MCP Atlassian: SSRF via DNS Rebinding in Header-Based Authentication Flow

CVE-2026-77265 · lines 472–493 · +22 −0

High · CVSS 7.5

EPSS 0.3%2026-09-22

MCP Atlassian: Arbitrary File Read via Upload Attachment Tools

CVE-2026-77270 · lines 472–493 · +22 −0

Medium · CVSS 6.5

EPSS 0.4%2026-09-22

MCP Atlassian: Arbitrary file read/exfiltration via upload_attachment missing validate_safe_path()

CVE-2026-77258 · lines 472–493 · +22 −0

High · CVSS 7.7

EPSS 0.3%2026-09-22

MCP Atlassian: SSRF Protection Bypass

CVE-2026-77274 · lines 472–493 · +22 −0

High · CVSS 8.8

EPSS 0.3%2026-09-22

MCP Atlassian is a Model Context Protocol (MCP): DNS-rebinding TOCTOU bypass of the SSRF fix (CVE-2026-27826): unauthenticated SSRF to cloud metadata

CVE-2026-73497 · lines 472–493 · +22 −0

Medium · CVSS 6.5

EPSS 0.4%2026-09-14

MCP Atlassian: Arbitrary server-side file read via attachment upload

CVE-2026-73496 · lines 472–493 · +22 −0

High · CVSS 7.7

EPSS 0.5%2026-09-14

MCP Atlassian is a Model Context Protocol (MCP): Arbitrary file read via missing path validation in confluence_upload_attachment

CVE-2026-73498 · lines 472–493 · +22 −0

High · CVSS 7.7

EPSS 0.5%2026-08-12

safe_send

Overview

CVEs that patched it

Other functions in these files

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Frequently asked questions

References

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