Security readout for executives and security teams
Plain-English summary
A vulnerable tts-api service can let a low-privileged actor who can reach it trigger operating-system command injection during speech completion handling. Successful abuse could affect confidentiality, integrity, and availability of the host at a limited level. The named fix is upgrading to tts-api 2.2.0.
Executive priority
Treat this as a targeted remediation item, not a broad emergency. Command injection is serious, but the available scoring shows adjacent access and low privileges are required. Upgrade affected instances promptly and confirm exposure controls.
Technical view
CVE-2019-25158 is CWE-78 command injection in pedroetb tts-api versions 2.1.0 through 2.1.4. The affected code is the onSpeechDone function in app.js. CVSS 3.1 is 5.5 with adjacent attack vector, low complexity, low privileges, and no user interaction.
Likely exposure
Exposure is likely limited to organizations running pedroetb tts-api 2.1.0 through 2.1.4, especially where the service is reachable by untrusted adjacent users or systems. The sources do not identify other affected products, package distributions, or deployment defaults.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. VulDB describes the issue publicly and identifies required permissions. The CVSS vector indicates exploitation needs adjacent network access and low privileges, with no victim user interaction.
Researcher notes
Evidence names app.js onSpeechDone and patch commit 29d9c25415911ea2f8b6de247cb5c4607d13d434. The source bundle does not include exploit details, public exploitation claims, or compensating controls beyond upgrading. Avoid assuming internet-wide exposure without local inventory evidence.
Mitigation direction
- Upgrade pedroetb tts-api to version 2.2.0 or later.
- Prioritize systems running versions 2.1.0 through 2.1.4.
- Restrict access to the tts-api service to trusted networks and identities.
- Review vendor release notes and the patch commit for deployment-specific guidance.
- Monitor affected hosts for unexpected process execution or service instability.
Validation and detection
- Inventory deployed pedroetb tts-api versions.
- Confirm no production instance runs versions 2.1.0 through 2.1.4.
- Verify the v2.2.0 patch is present in deployed code.
- Review service exposure paths and authentication requirements.
- Check logs for anomalous speech completion activity and child process behavior.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-25158 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L2.13.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://vuldb.com/?id.248278CVE reference · vdb-entry, technical-description
- https://vuldb.com/?ctiid.248278CVE reference · signature, permissions-required
- https://github.com/pedroetb/tts-api/commit/29d9c25415911ea2f8b6de247cb5c4607d13d434CVE reference · patch
- https://github.com/pedroetb/tts-api/releases/tag/v2.2.0CVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.