Common Weakness Enumeration
CWE-150
AllowedImproper 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.
138 vulnerabilities reference this CWE, most recent first.
CVE-2026-90773 (GCVE-0-2026-90773)
Vulnerability from cvelistv5 – Published: 2026-09-13 10:45 – Updated: 2026-09-13 10:45
VLAI
EPSS
VEX
Title
procs through 0.14.12 Terminal Escape Sequence Injection via Command
Summary
procs through 0.14.12 fails to sanitize escape sequences in process command lines before displaying them in the Command column. Local attackers can execute processes with malicious ANSI or OSC escape sequences in their command line arguments, which are written unmodified to other users' terminals for interpretation by terminal emulators.
Severity
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/dalance/procs/issues/950 | issue-tracking |
| https://github.com/dalance/procs | product |
| https://github.com/dalance/procs/blob/v0.14.12/sr… | technical-description |
| https://github.com/dalance/procs/commit/a064cec7d… | patch |
| https://www.vulncheck.com/advisories/procs-throug… | third-party-advisory |
Date Public
2026-08-06 00:00
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CVE-2026-82710 (GCVE-0-2026-82710)
Vulnerability from cvelistv5 – Published: 2026-09-08 00:23 – Updated: 2026-09-08 14:45
VLAI
EPSS
VEX
Title
Terminal escape sequence injection in mix usage_rules.search_docs via package documentation metadata
Summary
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project usage_rules allows a malicious package publisher to inject terminal control sequences into the output of mix usage_rules.search_docs.
mix usage_rules.search_docs searches Hex documentation through search.hexdocs.pm, which indexes the documentation of every published package, and prints the matching results (title, package, type, doc reference, and highlighted snippets) to the terminal. The formatter in Mix.Tasks.UsageRules.SearchDocs interpolated those publisher-controlled fields verbatim, neutralizing no terminal control characters; the only transform it applied adds escape sequences rather than removing them. A malicious package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns, OSC 52 clipboard writes) in its indexed documentation, so when a developer runs a search that surfaces those docs the sequences reach the terminal unchanged — forging the displayed hexdocs URL or a suggested command, hiding text, or writing to the clipboard. No authentication or privileged position is required; only publishing a package.
This issue affects usage_rules: from 0.1.18 before 1.2.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 14:45 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/usage_rules/securi… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82710.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82710 | related |
| https://github.com/ash-project/usage_rules/commit… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ash-project | usage_rules |
Affected:
0.1.18 , < 1.2.8
(semver)
cpe:2.3:a:ash-project:usage_rules:*:*:*:*:*:*:*:* |
|
| ash-project | usage_rules |
Affected:
2da7a99536041d63ec1f391d019565789a59595f , < 3b8ebb4117d3272bbd436e6c2432113ba6685dbb
(git)
cpe:2.3:a:ash-project:usage_rules:*:*:*:*:*:*:*:* |
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CVE-2026-82584 (GCVE-0-2026-82584)
Vulnerability from cvelistv5 – Published: 2026-09-07 22:54 – Updated: 2026-09-08 14:44
VLAI
EPSS
VEX
Title
Terminal escape sequence injection in the mix igniter.install confirmation prompt via package metadata
Summary
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project igniter allows a malicious package publisher to forge the mix igniter.install confirmation prompt.
mix igniter.install prints a confirmation panel (an anti-typosquatting safeguard) listing a package's hex metadata before adding it. The panel builder in Igniter.Project.Deps wrote publisher-controlled fields (meta.description, owner usernames, requirement names, version) to the terminal with only newlines stripped. A malicious or typosquatted package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns) in its metadata to overwrite the panel, forging trusted author names and download counts while concealing the real ones, so a developer relying on the panel to vet the package is deceived into approving a malicious dependency.
This issue affects igniter: from 0.8.1 before 0.8.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 14:44 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/igniter/security/a… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82584.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82584 | related |
| https://github.com/ash-project/igniter/commit/d49… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ash-project | igniter |
Affected:
0.8.1 , < 0.8.4
(semver)
cpe:2.3:a:ash-project:igniter:*:*:*:*:*:*:*:* |
|
| ash-project | igniter |
Affected:
d26d9b3a8348661813617606076315075d32663b , < d492b1aa33f8fb0dacc0afa41b703fb922d42816
(git)
cpe:2.3:a:ash-project:igniter:*:*:*:*:*:*:*:* |
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CVE-2026-75483 (GCVE-0-2026-75483)
Vulnerability from cvelistv5 – Published: 2026-08-17 20:36 – Updated: 2026-08-20 15:24
VLAI
EPSS
VEX
Title
powerlevel10k Control Character Injection via package.json Version
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 13:41 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/romkatv/powerlevel10k/issues/2961 | issue-tracking |
| https://github.com/romkatv/powerlevel10k | product |
| https://github.com/romkatv/powerlevel10k/commit/5… | patch |
| https://github.com/romkatv/powerlevel10k/blob/mas… | technical-description |
| https://www.vulncheck.com/advisories/powerlevel10… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| romkatv | powerlevel10k |
Affected:
0 , ≤ 1.20.0
(custom)
|
Date Public
2026-08-07 00:00
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CVE-2026-73506 (GCVE-0-2026-73506)
Vulnerability from cvelistv5 – Published: 2026-08-13 14:23 – Updated: 2026-08-14 15:37
VLAI
EPSS
VEX
Title
Oh My Posh: Terminal escape sequence injection via unsanitized prompt segment data
Summary
Oh My Posh is the most customisable and low-latency cross platform/shell prompt renderer. Prior to 29.35.1, write(s rune) in src/terminal/writer.go emitted attacker-controlled current directory names and Git metadata, including Commit.Subject, Commit.Author.Name, Commit.Author.Email, and RawUpstreamURL, without removing C0/C1 terminal control characters such as ESC, BEL, CSI, and OSC, allowing terminal escape sequence injection during prompt rendering that could overwrite the clipboard, spoof the prompt or screen, manipulate the window title, or disrupt the terminal. This issue is fixed in version 29.35.1.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:35 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/JanDeDobbeleer/oh-my-posh/secu… | x_refsource_CONFIRM |
| https://github.com/JanDeDobbeleer/oh-my-posh/pull/7711 | x_refsource_MISC |
| https://github.com/JanDeDobbeleer/oh-my-posh/comm… | x_refsource_MISC |
| https://github.com/JanDeDobbeleer/oh-my-posh/rele… | x_refsource_MISC |
| https://github.com/Budibase/budibase/security/adv… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| JanDeDobbeleer | oh-my-posh |
Affected:
< 29.35.1
|
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CVE-2026-73414 (GCVE-0-2026-73414)
Vulnerability from cvelistv5 – Published: 2026-08-12 19:42 – Updated: 2026-08-14 22:11
VLAI
EPSS
VEX
Title
Shescape: Shell injection via unescaped parentheses on Windows with CMD
Summary
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, getEscapeFunction in src/internal/win/cmd.js does not escape `(` and `)` when applications use the escape or escapeAll APIs on Windows with shell set to cmd.exe, or with shell set to true when CMD is the default. An attacker-controlled argument can break out of a parenthesized CMD construct and inject shell syntax depending on the original command, resulting in arbitrary command execution. This issue is fixed in versions 2.1.14 and 3.0.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 22:11 UTC
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/ericcornelissen/shescape/secur… | x_refsource_CONFIRM |
| https://github.com/ericcornelissen/shescape/pull/2649 | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/pull/2651 | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/commi… | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/commi… | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/relea… | x_refsource_MISC |
| https://github.com/ericcornelissen/shescape/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ericcornelissen | shescape |
Affected:
< 2.1.14
Affected: >= 3.0.0, < 3.0.1 |
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CVE-2026-73036 (GCVE-0-2026-73036)
Vulnerability from cvelistv5 – Published: 2026-08-11 19:37 – Updated: 2026-08-12 12:58
VLAI
EPSS
VEX
Title
Bash-it barbuk Theme 3.2.0 Terminal Escape Sequence Injection via pyproject.toml
Summary
Bash-it 3.2.0 contains a terminal escape sequence injection vulnerability in the barbuk theme's Python virtualenv prompt segment that allows local attackers to inject arbitrary terminal control sequences by embedding escape sequences in the requires-python field of a pyproject.toml file. When a user navigates into a directory containing a maliciously crafted pyproject.toml, the unfiltered field value is read via awk and concatenated directly into PS1 through __prompt-command without stripping control characters, causing injected OSC or CSI sequences to be written to and interpreted by the terminal emulator on every prompt render.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 12:58 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/Bash-it/bash-it | product |
| https://github.com/Bash-it/bash-it/commit/fab8f57… | patch |
| https://github.com/Bash-it/bash-it/issues/2396 | issue-tracking |
| https://github.com/Bash-it/bash-it/pull/2397 | technical-description |
| https://www.vulncheck.com/advisories/bash-it-barb… | third-party-advisory |
Date Public
2026-08-11 00:00
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CVE-2026-73035 (GCVE-0-2026-73035)
Vulnerability from cvelistv5 – Published: 2026-08-10 20:19 – Updated: 2026-08-11 14:34 X_Open Source
VLAI
EPSS
VEX
Title
npm-check-updates 23.0.2 Terminal Injection via Unsanitized Escape Sequences
Summary
npm-check-updates through 23.0.2, fixed in commit b554b84, contains a terminal escape sequence injection vulnerability that allows an attacker to embed arbitrary terminal control characters in a dependency's package.json homepage or repository URL fields. When a developer runs ncu with the --format homepage or --format repo option, unfiltered escape sequences are written directly to the terminal, enabling malicious output manipulation or other terminal-dependent effects.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 14:34 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/raineorshine/npm-check-updates… | technical-description |
| https://github.com/raineorshine/npm-check-updates… | issue-tracking |
| https://github.com/raineorshine/npm-check-updates… | patch |
| https://www.vulncheck.com/advisories/npm-check-up… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| raineorshine | npm-check-updates |
Affected:
0 , ≤ 23.0.2
(semver)
Unaffected: b554b84848fc0b08a9d2b3d3db15e351387168cf (git) |
Date Public
2026-08-07 00:00
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CVE-2026-72913 (GCVE-0-2026-72913)
Vulnerability from cvelistv5 – Published: 2026-08-10 21:07 – Updated: 2026-08-11 15:59
VLAI
EPSS
VEX
Title
Kitty: Command injection into the child shell via chained @kitty-echo + @kitty-ssh DCS escape sequences
Summary
Kitty is a cross-platform GPU based terminal. Prior to 0.48.2, the @kitty-echo and @kitty-ssh DCS handlers in kitty/window.py write unauthenticated data to the child shell's stdin, where handle_remote_echo accepts printable shell command characters and handle_remote_ssh calls get_ssh_data in kittens/ssh/utils.py, which emits a newline; chaining the handlers can execute attacker-controlled commands when a user displays untrusted terminal data. This issue is fixed in version 0.48.2.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 15:57 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kovidgoyal/kitty/security/advi… | x_refsource_CONFIRM |
| https://github.com/kovidgoyal/kitty/commit/9dca94… | x_refsource_MISC |
| https://github.com/kovidgoyal/kitty/releases/tag/… | x_refsource_MISC |
| https://sw.kovidgoyal.net/kitty/changelog/#id1 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| kovidgoyal | kitty |
Affected:
< 0.48.2
|
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"url": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-ccp2-q4v6-rw94"
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{
"name": "https://github.com/kovidgoyal/kitty/commit/9dca948e9bec3c926ab3370f2cd10f9b9b10821f",
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"url": "https://github.com/kovidgoyal/kitty/commit/9dca948e9bec3c926ab3370f2cd10f9b9b10821f"
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"title": "Kitty: Command injection into the child shell via chained @kitty-echo + @kitty-ssh DCS escape sequences"
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CVE-2026-72847 (GCVE-0-2026-72847)
Vulnerability from cvelistv5 – Published: 2026-08-20 17:19 – Updated: 2026-08-21 16:22
VLAI
EPSS
VEX
Title
broot Terminal Escape Sequence Injection via Unsanitized File and Directory Names in the Tree View
Summary
broot renders each file and directory name in its interactive tree view exactly as read from the filesystem. Names are converted with a plain to_string_lossy() call in src/tree_build/builder.rs and in TreeLine::unprune in src/tree/tree_line.rs, and no control-character filtering exists anywhere in the code, even though the doc comment on the TreeLine name field states that some characters may have been stripped. Any local user who can create a file can therefore place an escape sequence in its name and have it written unmodified to the terminal of anyone who browses that directory, between broot's own styling codes. A reported proof of concept used an OSC 52 clipboard-write sequence and captured the raw bytes broot wrote to its pty, confirming the sequence reaches the terminal unstripped. What an injected OSC or CSI sequence can then do depends on the terminal emulator in use. Browsing a directory is broot's primary function and carries no expectation that the content is trusted.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 16:22 UTC
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/Canop/broot/issues/1188 | issue-tracking |
| https://github.com/Canop/broot/commit/4ba40f7d47a… | patch |
| https://github.com/Canop/broot/commit/0717a94b3c0… | patch |
| https://github.com/Canop/broot/blob/v1.58.0/src/t… | technical-description |
| https://github.com/Canop/broot/blob/v1.58.0/src/t… | technical-description |
| https://github.com/Canop/broot | product |
| https://www.vulncheck.com/advisories/broot-termin… | third-party-advisory |
Date Public
2026-08-06 00:00
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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.