Vulnerability-Lookup

CVE-2026-67424 (GCVE-0-2026-67424)

Vulnerability from cvelistv5 – Published: 2026-07-29 18:32 – Updated: 2026-07-29 19:09

Title

Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation

Summary

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the HTTP modules http.get, http.request, and http.batch in src/core/modules/atomic/http/get.py, src/core/modules/atomic/http/request.py, and src/core/modules/atomic/http/batch.py validate only the initial URL, then follow redirects with allow_redirects=True and without per-hop Location revalidation, allowing a public URL to redirect into internal address space and return the internal response body. This issue is fixed in version 2.26.7.

Severity

8.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-29 19:07 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/flytohub/flyto-core/security/a…	x_refsource_CONFIRM
https://github.com/flytohub/flyto-core/commit/0a0…	x_refsource_MISC
https://github.com/flytohub/flyto-core/releases/t…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
flytohub	flyto-core	Affected: < 2.26.7	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-67424

Vulnerability from fkie_nvd - Published: 2026-07-29 19:16 - Updated: 2026-07-30 16:41

Severity

8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9
	security-advisories@github.com	https://github.com/flytohub/flyto-core/releases/tag/v2.26.7
	security-advisories@github.com	https://github.com/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "product": "flyto-core",
          "vendor": "flytohub",
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              "status": "affected",
              "version": "\u003c 2.26.7"
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GHSA-C9HR-64H3-GXPC

Vulnerability from github – Published: 2026-07-30 14:48 – Updated: 2026-07-30 14:48

Summary

Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation

Details

Summary

The HTTP modules that DO call the SSRF guard (http.get, http.request, http.batch) validate only the initial URL, then issue the request with aiohttp's default allow_redirects=True and perform no per-hop revalidation. An attacker hosts a public URL that 302-redirects to an internal address; the guard passes on the public host and aiohttp transparently follows the redirect into internal space, returning the internal body.

Root Cause

src/core/modules/atomic/http/get.py:116 calls session.get(url, ...) with no allow_redirects argument → aiohttp default True. request.py:60 sets allow_redirects=follow_redirects (default True at :327); batch.py:57 likewise. A repo grep of http/ for on_request_redirect / response.history returns NONE — there is no redirect interception or Location revalidation.

Impact

Full readable SSRF that defeats the primary SSRF control on the very modules that correctly validate. Confidentiality of internal/metadata responses (C:H), S:C.

Proof of Concept

Verified live: http.get with allowlisted base 127.0.0.1 followed a 302 Location: http://127.0.0.2/... (non-allowlisted) and returned INTERNAL-VIA-REDIRECT.

attacker hosts http://attacker.tld/r  ->  302 Location: http://<cloud-metadata-ip>/latest/meta-data/...
execute_module http.get {"url":"http://attacker.tld/r"}

Attack Chain

Entry: execute_module http.get {url:"http://attacker.tld/r"} (attacker 302->internal). Guard: validate_url_with_env_config(url) (get.py:104). Bypass proof: validation runs on attacker.tld (public) → passes; never re-run on the redirect target.
Sink: session.get(url) (get.py:116) — no allow_redirects arg → aiohttp default True. Bypass proof: grep of http/ for on_request_redirect/response.history → NONE.
Impact: aiohttp follows 302 to the internal host; internal body returned (get.py:118).

Bypass Evidence

Live PoC followed a 302 into non-allowlisted loopback and returned the internal marker string. aiohttp ClientSession.get default allow_redirects=True; module never sets it False; no per-hop revalidation exists.

Affected Versions

<= 2.26.6 — get.py:116, request.py:60, batch.py:57 present on latest release tag.

Suggested Fix

Set allow_redirects=False and manually revalidate each Location header through validate_url_with_env_config before following, or cap and re-check every hop.

Credit

Vulnerability discovered by zx (Jace).

Severity

8.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Show details on source website

JSON

To clipboard

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  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.26.6"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "flyto-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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              "fixed": "2.26.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-67424"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-30T14:48:16Z",
    "nvd_published_at": "2026-07-29T19:16:51Z",
    "severity": "HIGH"
  },
  "details": "## Summary\nThe HTTP modules that DO call the SSRF guard (`http.get`, `http.request`, `http.batch`) validate only the initial URL, then issue the request with aiohttp\u0027s default `allow_redirects=True` and perform no per-hop revalidation. An attacker hosts a public URL that 302-redirects to an internal address; the guard passes on the public host and aiohttp transparently follows the redirect into internal space, returning the internal body.\n\n## Root Cause\n`src/core/modules/atomic/http/get.py:116` calls `session.get(url, ...)` with no `allow_redirects` argument \u2192 aiohttp default `True`. `request.py:60` sets `allow_redirects=follow_redirects` (default True at :327); `batch.py:57` likewise. A repo grep of `http/` for `on_request_redirect` / `response.history` returns NONE \u2014 there is no redirect interception or Location revalidation.\n\n## Impact\nFull readable SSRF that defeats the primary SSRF control on the very modules that correctly validate. Confidentiality of internal/metadata responses (C:H), S:C.\n\n## Proof of Concept\nVerified live: `http.get` with allowlisted base `127.0.0.1` followed a `302 Location: http://127.0.0.2/...` (non-allowlisted) and returned `INTERNAL-VIA-REDIRECT`.\n```\nattacker hosts http://attacker.tld/r  -\u003e  302 Location: http://\u003ccloud-metadata-ip\u003e/latest/meta-data/...\nexecute_module http.get {\"url\":\"http://attacker.tld/r\"}\n```\n\n## Attack Chain\n1. Entry: `execute_module http.get {url:\"http://attacker.tld/r\"}` (attacker 302-\u003einternal). Guard: `validate_url_with_env_config(url)` (get.py:104). Bypass proof: validation runs on `attacker.tld` (public) \u2192 passes; never re-run on the redirect target.\n2. Sink: `session.get(url)` (get.py:116) \u2014 no `allow_redirects` arg \u2192 aiohttp default True. Bypass proof: grep of `http/` for `on_request_redirect`/`response.history` \u2192 NONE.\n3. Impact: aiohttp follows 302 to the internal host; internal body returned (get.py:118).\n\n## Bypass Evidence\nLive PoC followed a 302 into non-allowlisted loopback and returned the internal marker string. aiohttp `ClientSession.get` default `allow_redirects=True`; module never sets it False; no per-hop revalidation exists.\n\n## Affected Versions\n`\u003c= 2.26.6` \u2014 `get.py:116`, `request.py:60`, `batch.py:57` present on latest release tag.\n\n## Suggested Fix\nSet `allow_redirects=False` and manually revalidate each `Location` header through `validate_url_with_env_config` before following, or cap and re-check every hop.\n\n## Credit\n\nVulnerability discovered by zx (Jace).",
  "id": "GHSA-c9hr-64h3-gxpc",
  "modified": "2026-07-30T14:48:17Z",
  "published": "2026-07-30T14:48:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67424"
    },
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/flytohub/flyto-core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/releases/tag/v2.26.7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation"
}

PYSEC-2026-3569

Vulnerability from pysec - Published: 2026-08-04 11:34 - Updated: 2026-08-04 13:36

Details

Summary

Root Cause

Impact

Full readable SSRF that defeats the primary SSRF control on the very modules that correctly validate. Confidentiality of internal/metadata responses (C:H), S:C.

Proof of Concept

Verified live: http.get with allowlisted base 127.0.0.1 followed a 302 Location: http://127.0.0.2/... (non-allowlisted) and returned INTERNAL-VIA-REDIRECT.

attacker hosts http://attacker.tld/r  ->  302 Location: http://<cloud-metadata-ip>/latest/meta-data/...
execute_module http.get {"url":"http://attacker.tld/r"}

Attack Chain

Entry: execute_module http.get {url:"http://attacker.tld/r"} (attacker 302->internal). Guard: validate_url_with_env_config(url) (get.py:104). Bypass proof: validation runs on attacker.tld (public) → passes; never re-run on the redirect target.
Sink: session.get(url) (get.py:116) — no allow_redirects arg → aiohttp default True. Bypass proof: grep of http/ for on_request_redirect/response.history → NONE.
Impact: aiohttp follows 302 to the internal host; internal body returned (get.py:118).

Bypass Evidence

Affected Versions

<= 2.26.6 — get.py:116, request.py:60, batch.py:57 present on latest release tag.

Suggested Fix

Set allow_redirects=False and manually revalidate each Location header through validate_url_with_env_config before following, or cap and re-check every hop.

Credit

Vulnerability discovered by zx (Jace).

Severity

8.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Impacted products

Name	purl
flyto-core	pkg:pypi/flyto-core

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "flyto-core",
        "purl": "pkg:pypi/flyto-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.26.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.0.5",
        "1.0.6",
        "1.0.7",
        "1.0.8",
        "1.0.9",
        "1.1.0",
        "1.1.1",
        "1.11.0",
        "1.12.0",
        "1.13.0",
        "1.14.0",
        "1.14.1",
        "1.14.2",
        "1.15.0",
        "1.16.0",
        "1.16.1",
        "1.16.10",
        "1.16.2",
        "1.16.3",
        "1.16.4",
        "1.16.5",
        "1.16.6",
        "1.16.7",
        "1.16.8",
        "1.16.9",
        "1.2.0",
        "1.3.0",
        "1.4.0",
        "1.5.0",
        "1.5.1",
        "1.5.2",
        "1.5.4",
        "1.6.0",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.6.4",
        "1.6.5",
        "1.7.0",
        "1.7.1",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.7.5",
        "1.7.6",
        "1.7.7",
        "1.7.8",
        "1.7.9",
        "1.8.0",
        "1.8.1",
        "1.8.10",
        "1.8.11",
        "1.8.12",
        "1.8.13",
        "1.8.14",
        "1.8.15",
        "1.8.16",
        "1.8.17",
        "1.8.2",
        "1.8.3",
        "1.8.4",
        "1.8.5",
        "1.8.6",
        "1.8.7",
        "1.8.8",
        "1.8.9",
        "1.9.0",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.10.0",
        "2.11.0",
        "2.12.0",
        "2.12.1",
        "2.12.13",
        "2.12.15",
        "2.12.16",
        "2.12.17",
        "2.12.18",
        "2.12.19",
        "2.12.2",
        "2.12.20",
        "2.12.21",
        "2.12.22",
        "2.12.23",
        "2.12.24",
        "2.12.25",
        "2.12.26",
        "2.12.27",
        "2.12.28",
        "2.12.3",
        "2.12.4",
        "2.12.5",
        "2.12.6",
        "2.13.0",
        "2.13.1",
        "2.13.2",
        "2.13.3",
        "2.13.4",
        "2.14.0",
        "2.15.0",
        "2.15.1",
        "2.15.2",
        "2.15.3",
        "2.16.1",
        "2.16.3",
        "2.16.4",
        "2.17.0",
        "2.17.1",
        "2.17.2",
        "2.17.3",
        "2.17.4",
        "2.17.5",
        "2.17.6",
        "2.17.7",
        "2.17.8",
        "2.18.0",
        "2.18.1",
        "2.18.10",
        "2.18.11",
        "2.18.2",
        "2.18.3",
        "2.18.4",
        "2.18.5",
        "2.18.6",
        "2.18.8",
        "2.18.9",
        "2.19.0",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.20.0",
        "2.20.1",
        "2.20.2",
        "2.20.3",
        "2.20.4",
        "2.23.0",
        "2.23.1",
        "2.23.2",
        "2.23.3",
        "2.24.0",
        "2.24.1",
        "2.24.2",
        "2.24.3",
        "2.24.4",
        "2.25.0",
        "2.25.1",
        "2.25.10",
        "2.25.11",
        "2.25.12",
        "2.25.13",
        "2.25.14",
        "2.25.15",
        "2.25.16",
        "2.25.17",
        "2.25.18",
        "2.25.19",
        "2.25.2",
        "2.25.20",
        "2.25.21",
        "2.25.22",
        "2.25.23",
        "2.25.24",
        "2.25.25",
        "2.25.26",
        "2.25.27",
        "2.25.3",
        "2.25.4",
        "2.25.5",
        "2.25.6",
        "2.25.7",
        "2.25.8",
        "2.25.9",
        "2.26.0",
        "2.26.1",
        "2.26.2",
        "2.26.3",
        "2.26.4",
        "2.26.5",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.4.1",
        "2.4.2",
        "2.4.3",
        "2.4.4",
        "2.4.5",
        "2.4.6",
        "2.4.7",
        "2.5.0",
        "2.5.1",
        "2.5.2",
        "2.6.0",
        "2.6.1",
        "2.7.0",
        "2.7.1",
        "2.7.2",
        "2.7.3",
        "2.7.4",
        "2.7.5",
        "2.7.6",
        "2.8.0",
        "2.9.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-67424",
    "GHSA-c9hr-64h3-gxpc"
  ],
  "details": "## Summary\nThe HTTP modules that DO call the SSRF guard (`http.get`, `http.request`, `http.batch`) validate only the initial URL, then issue the request with aiohttp\u0027s default `allow_redirects=True` and perform no per-hop revalidation. An attacker hosts a public URL that 302-redirects to an internal address; the guard passes on the public host and aiohttp transparently follows the redirect into internal space, returning the internal body.\n\n## Root Cause\n`src/core/modules/atomic/http/get.py:116` calls `session.get(url, ...)` with no `allow_redirects` argument \u2192 aiohttp default `True`. `request.py:60` sets `allow_redirects=follow_redirects` (default True at :327); `batch.py:57` likewise. A repo grep of `http/` for `on_request_redirect` / `response.history` returns NONE \u2014 there is no redirect interception or Location revalidation.\n\n## Impact\nFull readable SSRF that defeats the primary SSRF control on the very modules that correctly validate. Confidentiality of internal/metadata responses (C:H), S:C.\n\n## Proof of Concept\nVerified live: `http.get` with allowlisted base `127.0.0.1` followed a `302 Location: http://127.0.0.2/...` (non-allowlisted) and returned `INTERNAL-VIA-REDIRECT`.\n```\nattacker hosts http://attacker.tld/r  -\u003e  302 Location: http://\u003ccloud-metadata-ip\u003e/latest/meta-data/...\nexecute_module http.get {\"url\":\"http://attacker.tld/r\"}\n```\n\n## Attack Chain\n1. Entry: `execute_module http.get {url:\"http://attacker.tld/r\"}` (attacker 302-\u003einternal). Guard: `validate_url_with_env_config(url)` (get.py:104). Bypass proof: validation runs on `attacker.tld` (public) \u2192 passes; never re-run on the redirect target.\n2. Sink: `session.get(url)` (get.py:116) \u2014 no `allow_redirects` arg \u2192 aiohttp default True. Bypass proof: grep of `http/` for `on_request_redirect`/`response.history` \u2192 NONE.\n3. Impact: aiohttp follows 302 to the internal host; internal body returned (get.py:118).\n\n## Bypass Evidence\nLive PoC followed a 302 into non-allowlisted loopback and returned the internal marker string. aiohttp `ClientSession.get` default `allow_redirects=True`; module never sets it False; no per-hop revalidation exists.\n\n## Affected Versions\n`\u003c= 2.26.6` \u2014 `get.py:116`, `request.py:60`, `batch.py:57` present on latest release tag.\n\n## Suggested Fix\nSet `allow_redirects=False` and manually revalidate each `Location` header through `validate_url_with_env_config` before following, or cap and re-check every hop.\n\n## Credit\n\nVulnerability discovered by zx (Jace).",
  "id": "PYSEC-2026-3569",
  "modified": "2026-08-04T13:36:18.423967Z",
  "published": "2026-08-04T11:34:45.694Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67424"
    },
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/flytohub/flyto-core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/flytohub/flyto-core/releases/tag/v2.26.7"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/flyto-core"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-c9hr-64h3-gxpc"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-67424 (GCVE-0-2026-67424)

FKIE_CVE-2026-67424

GHSA-C9HR-64H3-GXPC

Summary

Root Cause

Impact

Proof of Concept

Attack Chain

Bypass Evidence

Affected Versions

Suggested Fix

Credit

PYSEC-2026-3569

Summary

Root Cause

Impact

Proof of Concept

Attack Chain

Bypass Evidence

Affected Versions

Suggested Fix

Credit

Tags

Sightings

Nomenclature

Related by attack behaviour