Common Weakness Enumeration

CWE-150

Allowed

Improper Neutralization of Escape, Meta, or Control Sequences

Abstraction: Variant · Status: Incomplete

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component.

156 vulnerabilities reference this CWE, most recent first.

GHSA-FP7Q-M5XH-3GGJ

Vulnerability from github – Published: 2026-09-27 15:31 – Updated: 2026-09-27 15:31
VLAI
Details

onefetch through 2.28.1 writes repository information field values to the terminal without removing control characters, allowing terminal escape sequence injection. Attackers can embed ANSI/OSC escape sequences in project manifest version and name fields to manipulate terminal output, rewrite window titles, hide text, or trigger emulator-specific behavior when victims run onefetch.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-100866"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-27T13:16:36Z",
    "severity": "MODERATE"
  },
  "details": "onefetch through 2.28.1 writes repository information field values to the terminal without removing control characters, allowing terminal escape sequence injection. Attackers can embed ANSI/OSC escape sequences in project manifest version and name fields to manipulate terminal output, rewrite window titles, hide text, or trigger emulator-specific behavior when victims run onefetch.",
  "id": "GHSA-fp7q-m5xh-3ggj",
  "modified": "2026-09-27T15:31:07Z",
  "published": "2026-09-27T15:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100866"
    },
    {
      "type": "WEB",
      "url": "https://github.com/o2sh/onefetch/issues/1828"
    },
    {
      "type": "WEB",
      "url": "https://github.com/o2sh/onefetch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/o2sh/onefetch/blob/9beb80329cf2e5bd784270f668139f0bafb48e2b/src/info/utils/info_field.rs#L43-L55"
    },
    {
      "type": "WEB",
      "url": "https://github.com/o2sh/onefetch/blob/9beb80329cf2e5bd784270f668139f0bafb48e2b/src/info/version.rs#L33-L35"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/onefetch-through-2.28.1-terminal-escape-sequence-injection"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-FV2R-R8MP-PG48

Vulnerability from github – Published: 2025-11-06 23:48 – Updated: 2025-11-17 21:49
VLAI
Summary
Soft Serve does not sanitize ANSI escape sequences in user input
Details

Impact

In several places where the user can insert data (e.g. names), ANSI escape sequences are not being removed, which can then be used, for example, to show fake alerts.

In the same token, git messages, when printed, are also not being sanitized.

Places in which this was found:

  1. Repository Description (pkg/backend/repo.go - SetDescription)
  2. Repository Project Name (pkg/backend/repo.go - SetProjectName)
  3. Git Commit Author Names (pkg/ssh/cmd/commit.go:69)
  4. Git Commit Messages (pkg/ssh/cmd/commit.go:71)
  5. Access Token Names (pkg/ssh/cmd/token.go:107)
  6. Webhook URLs (pkg/ssh/cmd/webhooks.go:72)

Patches

v0.11.0

Workarounds

No.

References

n/a

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.10.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/charmbracelet/soft-serve"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64494"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-06T23:48:12Z",
    "nvd_published_at": "2025-11-08T02:15:35Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nIn several places where the user can insert data (e.g. names), ANSI escape sequences are not being removed, which can then be used, for example, to show fake alerts.\n\nIn the same token, git messages, when printed, are also not being sanitized.\n\nPlaces in which this was found:\n\n1. Repository Description (pkg/backend/repo.go - SetDescription)\n2. Repository Project Name (pkg/backend/repo.go - SetProjectName)\n3. Git Commit Author Names (pkg/ssh/cmd/commit.go:69)\n4. Git Commit Messages (pkg/ssh/cmd/commit.go:71)\n5. Access Token Names (pkg/ssh/cmd/token.go:107)\n6. Webhook URLs (pkg/ssh/cmd/webhooks.go:72)\n\n### Patches\nv0.11.0\n\n### Workarounds\nNo.\n\n### References\nn/a",
  "id": "GHSA-fv2r-r8mp-pg48",
  "modified": "2025-11-17T21:49:09Z",
  "published": "2025-11-06T23:48:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-fv2r-r8mp-pg48"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64494"
    },
    {
      "type": "WEB",
      "url": "https://github.com/charmbracelet/soft-serve/commit/d9639320b8d0ccd76fe6836a042c042b0ebde549"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/charmbracelet/soft-serve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Soft Serve does not sanitize ANSI escape sequences in user input"
}

GHSA-FWJX-9P69-H25H

Vulnerability from github – Published: 2026-07-24 22:35 – Updated: 2026-08-13 14:23
VLAI
Summary
Oh My Posh: Terminal escape sequence injection via unsanitized prompt segment data
Details

Summary

Oh My Posh renders dynamic, potentially attacker-controlled strings (the current directory name, Git commit metadata, environment variable values, command output) into the prompt without neutralizing raw terminal control characters. An attacker who controls one of these values can inject ANSI/OSC escape sequences that the victim's terminal executes on every prompt render. (This is separate from the path-segment command-execution report; it has a different root cause and fix.)

Details

src/terminal/writer.go, write(s rune): the literal characters of rendered segment content are emitted to the output buffer, and the only neutralization is a lookup in formats.EscapeSequences, which per shell contains only the shell's prompt-length markers (\ for bash, % for zsh, nothing for fish/pwsh/cmd/nu). Raw C0/C1 control bytes (ESC 0x1b, BEL 0x07, CSI, OSC) are written verbatim.

Oh My Posh's own styling is emitted through separate paths (writeEscapedAnsiString, writeColorise, builder.WriteString(formats.Hyperlink...)), so any control rune reaching write(s rune) originates from rendered data. trimAnsi is already applied to the console title (FormatTitle) but not to the prompt body.

Attacker-controlled sources (both verified)

  1. Current directory name (default config, Linux/macOS). Directory names may contain any byte except / and NUL, including 0x1b. The path segment renders the working directory in every theme.
  2. Git commit subject / author / upstream URL (cross-platform, including Windows). Git.Commit() runs git log -1 --pretty=format:...su:%s... and exposes .Commit.Subject, .Commit.Author.Name/.Email and .RawUpstreamURL; Git imposes no restriction on these, so they can carry raw escape sequences.

PoC

Git commit-subject vector (config: a single git segment with template {{ .Commit.Subject }}):

printf 'feat: \033]0;HACKED\007\033]52;c;ZWNobyBQV05FRA==\007 update' > msg.txt
git commit --allow-empty -F msg.txt
oh-my-posh print primary --config poc.omp.json --shell fish | xxd

Output (excerpt) shows the attacker's OSC 0 (set title) and OSC 52 (clipboard write) passed through unmodified, wrapped only in Oh My Posh's colors:

...255m feat: 1b5d 303b 4841 434b 4544 07 1b5d 3532 3b63 3b5a 574e ... 07 ...
              ESC ] 0 ; H A C K E D  BEL  ESC ] 5 2 ; c ; <base64>  BEL

The directory-name vector reproduces identically via the path segment.

Impact

The terminal interprets the injected sequences on every render, enabling, per emulator: clipboard hijacking (OSC 52 write, so a command placed in the clipboard runs when the victim pastes), prompt/screen spoofing, window-title manipulation, and terminal denial of service. Delivery is remote (repo/archive/share); execution is local when the prompt renders after cd.

Suggested fix: neutralize C0/C1 control characters in untrusted segment data before it reaches the terminal, at minimum the path segment (folder names) and the git segment (Commit.Subject, Commit.Author.*, RawUpstreamURL). trimAnsi already exists and is applied to the title; extending equivalent handling to segment data closes the gap. Filtering control runes in write(s rune) would also work as defense in depth (Oh My Posh's own styling never flows through that function), optionally behind an opt-out for users who deliberately embed escapes in their own templates.

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 29.35.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/jandedobbeleer/oh-my-posh"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "29.35.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-73506"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-24T22:35:52Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nOh My Posh renders dynamic, potentially attacker-controlled strings (the current directory name, Git commit metadata, environment variable values, command output) into the prompt without neutralizing raw terminal control characters. An attacker who controls one of these values can inject ANSI/OSC escape sequences that the victim\u0027s terminal executes on every prompt render. (This is separate from the path-segment command-execution report; it has a different root cause and fix.)\n\n### Details\n`src/terminal/writer.go`, `write(s rune)`: the literal characters of rendered segment content are emitted to the output buffer, and the only neutralization is a lookup in `formats.EscapeSequences`, which per shell contains only the shell\u0027s prompt-length markers (`\\` for bash, `%` for zsh, nothing for fish/pwsh/cmd/nu). Raw C0/C1 control bytes (ESC `0x1b`, BEL `0x07`, CSI, OSC) are written verbatim.\n\nOh My Posh\u0027s own styling is emitted through separate paths (`writeEscapedAnsiString`, `writeColorise`, `builder.WriteString(formats.Hyperlink...)`), so any control rune reaching `write(s rune)` originates from rendered data. `trimAnsi` is already applied to the console title (`FormatTitle`) but not to the prompt body.\n\n### Attacker-controlled sources (both verified)\n1. Current directory name (default config, Linux/macOS). Directory names may contain any byte except `/` and NUL, including `0x1b`. The path segment renders the working directory in every theme.\n2. Git commit subject / author / upstream URL (cross-platform, including Windows). `Git.Commit()` runs `git log -1 --pretty=format:...su:%s...` and exposes `.Commit.Subject`, `.Commit.Author.Name`/`.Email` and `.RawUpstreamURL`; Git imposes no restriction on these, so they can carry raw escape sequences.\n\n### PoC\nGit commit-subject vector (config: a single git segment with template `{{ .Commit.Subject }}`):\n\n```\nprintf \u0027feat: \\033]0;HACKED\\007\\033]52;c;ZWNobyBQV05FRA==\\007 update\u0027 \u003e msg.txt\ngit commit --allow-empty -F msg.txt\noh-my-posh print primary --config poc.omp.json --shell fish | xxd\n```\n\nOutput (excerpt) shows the attacker\u0027s OSC 0 (set title) and OSC 52 (clipboard write) passed through unmodified, wrapped only in Oh My Posh\u0027s colors:\n\n```\n...255m feat: 1b5d 303b 4841 434b 4544 07 1b5d 3532 3b63 3b5a 574e ... 07 ...\n              ESC ] 0 ; H A C K E D  BEL  ESC ] 5 2 ; c ; \u003cbase64\u003e  BEL\n```\n\nThe directory-name vector reproduces identically via the path segment.\n\n### Impact\nThe terminal interprets the injected sequences on every render, enabling, per emulator: clipboard hijacking (OSC 52 write, so a command placed in the clipboard runs when the victim pastes), prompt/screen spoofing, window-title manipulation, and terminal denial of service. Delivery is remote (repo/archive/share); execution is local when the prompt renders after cd.\n\nSuggested fix: neutralize C0/C1 control characters in untrusted segment data before it reaches the terminal, at minimum the path segment (folder names) and the git segment (`Commit.Subject`, `Commit.Author.*`, `RawUpstreamURL`). `trimAnsi` already exists and is applied to the title; extending equivalent handling to segment data closes the gap. Filtering control runes in `write(s rune)` would also work as defense in depth (Oh My Posh\u0027s own styling never flows through that function), optionally behind an opt-out for users who deliberately embed escapes in their own templates.",
  "id": "GHSA-fwjx-9p69-h25h",
  "modified": "2026-08-13T14:23:11Z",
  "published": "2026-07-24T22:35:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/JanDeDobbeleer/oh-my-posh/security/advisories/GHSA-fwjx-9p69-h25h"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JanDeDobbeleer/oh-my-posh/commit/edcf3c88f3fb582e84358b385c49d33d04c04224"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/JanDeDobbeleer/oh-my-posh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JanDeDobbeleer/oh-my-posh/releases/tag/v29.35.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JanDeDobbeleer/oh-my-posh/releases/tag/v29.36.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Oh My Posh: Terminal escape sequence injection via unsanitized prompt segment data"
}

GHSA-G4X4-GM4C-5R8H

Vulnerability from github – Published: 2026-10-02 15:31 – Updated: 2026-10-02 15:31
VLAI
Details

In Sapling SCM prior to v0.2.20260929-102736, control characters were allowed to be embedded in Git subtree URLs. A maliciously constructed repository, if cloned by a target, could trigger code execution on otherwise read-only actions such as sl log/blame/annotate.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-104026"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-02T15:17:05Z",
    "severity": "HIGH"
  },
  "details": "In Sapling SCM prior to v0.2.20260929-102736, control characters were allowed to be embedded in Git subtree URLs. A maliciously constructed repository, if cloned by a target, could trigger code execution on otherwise read-only actions such as sl log/blame/annotate.",
  "id": "GHSA-g4x4-gm4c-5r8h",
  "modified": "2026-10-02T15:31:26Z",
  "published": "2026-10-02T15:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104026"
    },
    {
      "type": "WEB",
      "url": "https://www.facebook.com/security/advisories/cve-2026-104026"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-G7F6-RXC4-QHPH

Vulnerability from github – Published: 2026-09-23 19:01 – Updated: 2026-09-23 19:01
VLAI
Summary
Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint
Details

Summary

The /__csp__ endpoint accepts unauthenticated JSON reports and logs user-controlled values directly to stdout using print() without escaping control characters.

A remote attacker can include ANSI/VT100 escape sequences in fields such as blocked-uri or document-uri. When the logs are viewed in an ANSI-capable terminal, these sequences can manipulate the displayed output (e.g., clear the screen, hide text, or inject misleading messages), affecting the integrity of operator-facing logs.

Details

The CSP reporting endpoint accepts arbitrary JSON and prints several request fields directly:

mesop/server/static_file_serving.py

@app.route(prefix_base_url("/__csp__"), methods=["POST"])
def csp_report():
    report = request.get_json(force=True)

    document_uri = report["csp-report"]["document-uri"]
    blocked_uri = report["csp-report"]["blocked-uri"]
    violated_directive = report["csp-report"]["violated-directive"]

    print(f"... Blocked URL: {blocked_uri} ...")

Since these values are written to stdout without sanitization, ANSI escape sequences supplied by a remote client are preserved and interpreted by ANSI-compatible terminals.

PoC

Send the following request:

POST /__csp__
Content-Type: application/json

{
  "csp-report": {
    "document-uri": "https://victim.example",
    "blocked-uri": "\u001b[2J\u001b[H\u001b[32m*** SECURITY OK - No CSP violations found ***\u001b[0m\n\u001b[8mhttps://evil.example",
    "violated-directive": "script-src-elem"
  }
}

The request is accepted (HTTP 204), and the injected escape sequences are written to stdout unchanged.

When the captured output is rendered in a VT100-compatible terminal (verified using pyte), the original CSP warning is visually replaced with attacker-controlled content.

Expected output

    Content Security Policy Error

Directive: script-src-elem
Blocked URL: ...
App path: /app

Rendered output

*** SECURITY OK - No CSP violations found ***
https://evil.example
App path: /app

Impact

An unauthenticated remote attacker can submit a crafted request to the /csp endpoint containing ANSI/VT100 escape sequences. Because these values are written directly to stdout without sanitization, an attacker can:

  1. Inject forged log messages that appear to originate from the application.
  2. Manipulate the terminal display by clearing the screen, moving the cursor, or overwriting previously displayed log output.
  3. Hide or disguise security-relevant log entries using terminal formatting sequences such as colors, hidden text, or cursor positioning.
  4. Mislead administrators during monitoring or incident response by displaying attacker-controlled messages (e.g., fake "SECURITY OK" notifications).
  5. Reduce the integrity and trustworthiness of operator-facing logs, making troubleshooting and security investigations less reliable.
Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.3.3"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "mesop"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-93421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-117",
      "CWE-150"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-23T19:01:05Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nThe `/__csp__` endpoint accepts unauthenticated JSON reports and logs user-controlled values directly to stdout using `print()` without escaping control characters.\n\nA remote attacker can include ANSI/VT100 escape sequences in fields such as `blocked-uri` or `document-uri`. When the logs are viewed in an ANSI-capable terminal, these sequences can manipulate the displayed output (e.g., clear the screen, hide text, or inject misleading messages), affecting the integrity of operator-facing logs.\n\n### Details\n\nThe CSP reporting endpoint accepts arbitrary JSON and prints several request fields directly:\n\nmesop/server/static_file_serving.py\n```python\n@app.route(prefix_base_url(\"/__csp__\"), methods=[\"POST\"])\ndef csp_report():\n    report = request.get_json(force=True)\n\n    document_uri = report[\"csp-report\"][\"document-uri\"]\n    blocked_uri = report[\"csp-report\"][\"blocked-uri\"]\n    violated_directive = report[\"csp-report\"][\"violated-directive\"]\n\n    print(f\"... Blocked URL: {blocked_uri} ...\")\n```\n\nSince these values are written to stdout without sanitization, ANSI escape sequences supplied by a remote client are preserved and interpreted by ANSI-compatible terminals.\n\n### PoC\n\nSend the following request:\n\n```http\nPOST /__csp__\nContent-Type: application/json\n\n{\n  \"csp-report\": {\n    \"document-uri\": \"https://victim.example\",\n    \"blocked-uri\": \"\\u001b[2J\\u001b[H\\u001b[32m*** SECURITY OK - No CSP violations found ***\\u001b[0m\\n\\u001b[8mhttps://evil.example\",\n    \"violated-directive\": \"script-src-elem\"\n  }\n}\n```\n\nThe request is accepted (HTTP 204), and the injected escape sequences are written to stdout unchanged.\n\nWhen the captured output is rendered in a VT100-compatible terminal (verified using `pyte`), the original CSP warning is visually replaced with attacker-controlled content.\n\n**Expected output**\n\n```text\n    Content Security Policy Error\n\nDirective: script-src-elem\nBlocked URL: ...\nApp path: /app\n```\n\n**Rendered output**\n\n```text\n*** SECURITY OK - No CSP violations found ***\nhttps://evil.example\nApp path: /app\n```\n\n### Impact\n\nAn unauthenticated remote attacker can submit a crafted request to the /__csp__ endpoint containing ANSI/VT100 escape sequences. Because these values are written directly to stdout without sanitization, an attacker can:\n\n1. Inject forged log messages that appear to originate from the application.\n2. Manipulate the terminal display by clearing the screen, moving the cursor, or overwriting previously displayed log output.\n3. Hide or disguise security-relevant log entries using terminal formatting sequences such as colors, hidden text, or cursor positioning.\n4. Mislead administrators during monitoring or incident response by displaying attacker-controlled messages (e.g., fake \"SECURITY OK\" notifications).\n5. Reduce the integrity and trustworthiness of operator-facing logs, making troubleshooting and security investigations less reliable.",
  "id": "GHSA-g7f6-rxc4-qhph",
  "modified": "2026-09-23T19:01:05Z",
  "published": "2026-09-23T19:01:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mesop-dev/mesop/security/advisories/GHSA-g7f6-rxc4-qhph"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mesop-dev/mesop/pull/1397"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mesop-dev/mesop/commit/f38c42a1d3eba246941ef8d7f645072d53c58785"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mesop-dev/mesop"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mesop-dev/mesop/releases/tag/v1.3.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint"
}

GHSA-GCJM-C673-V7VJ

Vulnerability from github – Published: 2026-08-17 21:31 – Updated: 2026-08-17 21:31
VLAI
Details

powerlevel10k fails to neutralize control characters in the package.json version field when rendering the package prompt segment. Attackers can inject raw escape bytes in the version string to emit arbitrary terminal control sequences on each prompt render when the shell enters affected directories.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-75483"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-17T21:16:57Z",
    "severity": "MODERATE"
  },
  "details": "powerlevel10k fails to neutralize control characters in the package.json version field when rendering the package prompt segment. Attackers can inject raw escape bytes in the version string to emit arbitrary terminal control sequences on each prompt render when the shell enters affected directories.",
  "id": "GHSA-gcjm-c673-v7vj",
  "modified": "2026-08-17T21:31:27Z",
  "published": "2026-08-17T21:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75483"
    },
    {
      "type": "WEB",
      "url": "https://github.com/romkatv/powerlevel10k/issues/2961"
    },
    {
      "type": "WEB",
      "url": "https://github.com/romkatv/powerlevel10k/commit/58e13d16a50e1d6908e39e20a670896808ccf350"
    },
    {
      "type": "WEB",
      "url": "https://github.com/romkatv/powerlevel10k"
    },
    {
      "type": "WEB",
      "url": "https://github.com/romkatv/powerlevel10k/blob/master/internal/p10k.zsh"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/powerlevel10k-control-character-injection-via-package-json-version"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-GGWJ-H7WP-PG4F

Vulnerability from github – Published: 2026-10-01 09:30 – Updated: 2026-10-01 09:30
VLAI
Details

colmux in collectl before 4.3.20.2 does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances before displaying it, allowing a local user on a monitored host to inject escape sequences into the terminal of an operator running colmux, via a crafted process name (argv[0]).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-103431"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-01T09:17:07Z",
    "severity": "HIGH"
  },
  "details": "colmux in collectl before 4.3.20.2 does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances before displaying it, allowing a local user on a monitored host to inject escape sequences into the terminal of an operator running colmux, via a crafted process name (argv[0]).",
  "id": "GHSA-ggwj-h7wp-pg4f",
  "modified": "2026-10-01T09:30:34Z",
  "published": "2026-10-01T09:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103431"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-103431"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543974"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GMJ6-6F8F-6699

Vulnerability from github – Published: 2024-12-23 17:54 – Updated: 2025-01-08 16:06
VLAI
Summary
Jinja has a sandbox breakout through malicious filenames
Details

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used.

To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.1.4"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "jinja2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-56201"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-12-23T17:54:12Z",
    "nvd_published_at": "2024-12-23T16:15:07Z",
    "severity": "MODERATE"
  },
  "details": "A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja\u0027s sandbox is used.\n\nTo exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.",
  "id": "GHSA-gmj6-6f8f-6699",
  "modified": "2025-01-08T16:06:01Z",
  "published": "2024-12-23T17:54:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/security/advisories/GHSA-gmj6-6f8f-6699"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56201"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/issues/1792"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/commit/767b23617628419ae3709ccfb02f9602ae9fe51f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pallets/jinja"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/releases/tag/3.1.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Jinja has a sandbox breakout through malicious filenames"
}

GHSA-GP37-M2C5-J775

Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2024-08-20 18:31
VLAI
Details

RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-36052"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T17:15:09Z",
    "severity": "HIGH"
  },
  "details": "RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899.",
  "id": "GHSA-gp37-m2c5-j775",
  "modified": "2024-08-20T18:31:14Z",
  "published": "2024-05-21T18:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36052"
    },
    {
      "type": "WEB",
      "url": "https://sdushantha.medium.com/ansi-escape-injection-vulnerability-in-winrar-a2cbfac4b983"
    },
    {
      "type": "WEB",
      "url": "https://www.rarlab.com/rarnew.htm"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GRQV-QMHW-8PWC

Vulnerability from github – Published: 2026-04-14 18:30 – Updated: 2026-04-14 18:30
VLAI
Details

Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to bypass a security feature over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-26149"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-14T18:16:45Z",
    "severity": "CRITICAL"
  },
  "details": "Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to bypass a security feature over a network.",
  "id": "GHSA-grqv-qmhw-8pwc",
  "modified": "2026-04-14T18:30:37Z",
  "published": "2026-04-14T18:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26149"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26149"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation

Developers should anticipate that escape, meta and control characters/sequences will be injected/removed/manipulated in the input vectors of their product. Use an appropriate combination of denylists and allowlists to ensure only valid, expected and appropriate input is processed by the system.

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation MIT-28
Implementation

Strategy: Output Encoding

While it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or white space). If some special characters are still needed, such as white space, wrap each argument in quotes after the escaping/filtering step. Be careful of argument injection (CWE-88).

Mitigation MIT-20
Implementation

Strategy: Input Validation

Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

Mitigation
Implementation

When using output from an LLM, neutralize or strip escape codes before redirecting output to the terminal or other rendering engine that would process the codes. The neutralization could require that the character be printable and/or allowable whitespace, such as a carriage return or newline. Be deliberate about what to allow.

Mitigation
Build and Compilation

When using an LLM: during tokenizer training, suppress escape codes from the tokenizer's vocabulary. Depending on context, this could be accomplished by removing the codes from input to the tokenizer, or removing the map from the string to its token ID. It is generally unlikely that this removal would adversely affect the quality or correctness of what is generated, e.g. advice requests for terminal settings to change colors.

CAPEC-134: Email Injection

An adversary manipulates the headers and content of an email message by injecting data via the use of delimiter characters native to the protocol.

CAPEC-41: Using Meta-characters in E-mail Headers to Inject Malicious Payloads

This type of attack involves an attacker leveraging meta-characters in email headers to inject improper behavior into email programs. Email software has become increasingly sophisticated and feature-rich. In addition, email applications are ubiquitous and connected directly to the Web making them ideal targets to launch and propagate attacks. As the user demand for new functionality in email applications grows, they become more like browsers with complex rendering and plug in routines. As more email functionality is included and abstracted from the user, this creates opportunities for attackers. Virtually all email applications do not list email header information by default, however the email header contains valuable attacker vectors for the attacker to exploit particularly if the behavior of the email client application is known. Meta-characters are hidden from the user, but can contain scripts, enumerations, probes, and other attacks against the user's system.

CAPEC-81: Web Server Logs Tampering

Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.

CAPEC-93: Log Injection-Tampering-Forging

This attack targets the log files of the target host. The attacker injects, manipulates or forges malicious log entries in the log file, allowing them to mislead a log audit, cover traces of attack, or perform other malicious actions. The target host is not properly controlling log access. As a result tainted data is resulting in the log files leading to a failure in accountability, non-repudiation and incident forensics capability.