CVE-2018-1107
Regular expression deinal of service (ReDoS) in is-my-json-valid
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
- Record
CVE-2018-1107- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
- Record
CVE-2018-1107- Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2022-0444 No score
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
- Record
EUVD-2022-0444- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4hpf-3wq7-5rpr
Regular expression deinal of service (ReDoS) in is-my-json-valid
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
- Record
GHSA-4hpf-3wq7-5rpr- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGHSA-4hpf-3wq7-5rpr
Regular expression deinal of service (ReDoS) in is-my-json-valid
It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.
- Record
GHSA-4hpf-3wq7-5rpr- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVCLSA-2026-1773015272 No score
TuxCare security update for is-my-json-valid (2 CVEs)
TuxCare rebuilt is-my-json-valid to address 2 CVEs. Fixed in 2.12.2-tuxcare.1.
- Record
CLSA-2026-1773015272- Updated
- 2026-11-02
OSVCLSA-2026-1773793045 No score
TuxCare security update for is-my-json-valid (2 CVEs)
TuxCare rebuilt is-my-json-valid to address 2 CVEs. Fixed in 2.10.1-tuxcare.1.
- Record
CLSA-2026-1773793045- Updated
- 2026-11-02
OSVCLSA-2026-1792476292 No score
TuxCare security update for is-my-json-valid (1 CVE)
TuxCare rebuilt is-my-json-valid to address 1 CVE. Fixed in 2.12.4-tuxcare.2.
- Record
CLSA-2026-1792476292- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
is-my-json-validnpm |
2.0.0 up to 2.17.2 | 2.17.2 |
is-my-json-validnpm |
before 1.4.1 | 1.4.1 |
is-my-json-validTuxCare:npm |
2.12.2-tuxcare.0 up to 2.12.2-tuxcare.1, plus listed versions 2.12.2 |
2.12.2-tuxcare.1 |
is-my-json-validTuxCare:npm |
2.10.1-tuxcare.0 up to 2.10.1-tuxcare.1, plus listed versions 2.10.1 |
2.10.1-tuxcare.1 |
is-my-json-validTuxCare:npm |
2.12.4-tuxcare.0 up to 2.12.4-tuxcare.2, plus listed versions 2.12.42.12.4-tuxcare.1 |
2.12.4-tuxcare.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-1107 is a medium vulnerability (CVSS 5.3) in Is-my-json-valid Project Is-my-json-valid, published March 30, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. Fixed in is-my-json-valid 2.17.2.