CVE-2026-34840

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Source

https://cve.org/CVERecord?id=CVE-2026-34840

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34840.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-34840

Aliases

GHSA-5w5c-766x-265g

Published

2026-04-02T18:52:48.274Z

Modified

2026-07-27T03:56:42.879023834Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

OneUptime SSO: Multi-Assertion Identity Injection via Decoupled Signature Verification

Details

OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, OneUptime's SAML SSO implementation (App/FeatureSet/Identity/Utils/SSO.ts) has decoupled signature verification and identity extraction. isSignatureValid() verifies the first <Signature> element in the XML DOM using xml-crypto, while getEmail() always reads from assertion[0] via xml2js. An attacker can prepend an unsigned assertion containing an arbitrary identity before a legitimately signed assertion, resulting in authentication bypass. This issue has been patched in version 10.0.42.

Database specific

{
    "cwe_ids": [
        "CWE-347"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34840.json"
}

References

Affected packages

Git / github.com/oneuptime/oneuptime

Affected ranges

Type

GIT

Repo

https://github.com/oneuptime/oneuptime

Events

Introduced

Fixed

34b6c198cbba65d42ec0dde742daa5377767234c

Fixed

2fd7ede52f60444710628d6c1b34dee2ef9e57d1

Database specific

{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "10.0.42"
        }
    ]
}

Affected versions

Other

${CI_PIPELINE_ID}

build-number-6149

build-number-6151

build-number-6206

build-number-6214

build-number-6343

build-number-6345

build-number-6372

build-number-6390

build-number-6393

build-number-6402

build-number-6408

build-number-6480

build-number-6484

build-number-6508

10.*

10.0.11

10.0.15

10.0.16

10.0.17

10.0.18

10.0.20

10.0.21

10.0.22

10.0.23

10.0.24

10.0.26

10.0.28

10.0.31

10.0.33

10.0.34

10.0.35

10.0.36

10.0.37

10.0.38

10.0.39

10.0.41

10.0.5

10.0.7

6.*

6.0.$CI_PIPELINE_ID

6.0.1

6.0.12

6.0.14

6.0.15

6.0.17

6.0.18

6.0.19

6.0.2

6.0.20

6.0.21

6.0.22

6.0.23

6.0.24

6.0.25

6.0.26

6.0.27

7.*

7.0.1000

7.0.1004

7.0.1039

7.0.104

7.0.1055

7.0.106

7.0.1078

7.0.109

7.0.1093

7.0.11

7.0.112

7.0.114

7.0.1143

7.0.1144

7.0.1167

7.0.1174

7.0.1183

7.0.1184

7.0.1191

7.0.1192

7.0.1195

7.0.122

7.0.1225

7.0.1229

7.0.123

7.0.1230

7.0.1243

7.0.1246

7.0.126

7.0.1265

7.0.1290

7.0.1297

7.0.130

7.0.131

7.0.1326

7.0.1327

7.0.134

7.0.1341

7.0.1353

7.0.137

7.0.1375

7.0.1377

7.0.1378

7.0.1379

7.0.1383

7.0.139

7.0.141

7.0.1430

7.0.1436

7.0.144

7.0.1441

7.0.1461

7.0.1469

7.0.149

7.0.1491

7.0.1494

7.0.1500

7.0.1502

7.0.1505

7.0.1506

7.0.1510

7.0.1513

7.0.1514

7.0.1517

7.0.1528

7.0.1529

7.0.1544

7.0.1555

7.0.1557

7.0.1568

7.0.1581

7.0.1585

7.0.1586

7.0.160

7.0.162

7.0.1633

7.0.1637

7.0.1638

7.0.1642

7.0.1643

7.0.165

7.0.167

7.0.1688

7.0.169

7.0.1694

7.0.1697

7.0.1708

7.0.1709

7.0.1717

7.0.173

7.0.1740

7.0.1741

7.0.1744

7.0.1745

7.0.1751

7.0.1752

7.0.1758

7.0.1767

7.0.1769

7.0.1780

7.0.1787

7.0.179

7.0.1790

7.0.1791

7.0.1792

7.0.1794

7.0.1797

7.0.18

7.0.1800

7.0.1803

7.0.1814

7.0.1815

7.0.182

7.0.1829

7.0.183

7.0.1830

7.0.1843

7.0.1852

7.0.1854

7.0.1856

7.0.1858

7.0.1860

7.0.1862

7.0.1866

7.0.1867

7.0.1870

7.0.1871

7.0.1874

7.0.1880

7.0.1881

7.0.1886

7.0.1888

7.0.1891

7.0.1894

7.0.1901

7.0.1902

7.0.1910

7.0.1929

7.0.193

7.0.1930

7.0.1931

7.0.1934

7.0.1935

7.0.1940

7.0.1945

7.0.1965

7.0.1966

7.0.197

7.0.1978

7.0.1982

7.0.1987

7.0.200

7.0.2009

7.0.201

7.0.2012

7.0.2014

7.0.2016

7.0.2018

7.0.2032

7.0.2033

7.0.204

7.0.2051

7.0.2055

7.0.2057

7.0.2062

7.0.2063

7.0.2066

7.0.2084

7.0.2086

7.0.2088

7.0.21

7.0.2118

7.0.213

7.0.2171

7.0.2186

7.0.219

7.0.2190

7.0.2191

7.0.2195

7.0.2196

7.0.2200

7.0.2207

7.0.2223

7.0.2224

7.0.2231

7.0.2233

7.0.2237

7.0.2239

7.0.224

7.0.2240

7.0.2243

7.0.2246

7.0.2270

7.0.228

7.0.231

7.0.2319

7.0.2320

7.0.2327

7.0.2335

7.0.2341

7.0.2346

7.0.2349

7.0.2354

7.0.2358

7.0.2361

7.0.2363

7.0.2371

7.0.2372

7.0.2377

7.0.239

7.0.2401

7.0.2402

7.0.2410

7.0.2446

7.0.2448

7.0.2449

7.0.2471

7.0.2473

7.0.2475

7.0.2476

7.0.2478

7.0.2479

7.0.2482

7.0.2487

7.0.2509

7.0.2525

7.0.2550

7.0.2571

7.0.2572

7.0.2574

7.0.2589

7.0.2620

7.0.2625

7.0.2628

7.0.2639

7.0.2643

7.0.2666

7.0.2721

7.0.2725

7.0.2730

7.0.2774

7.0.2825

7.0.2828

7.0.2832

7.0.2837

7.0.2846

7.0.2873

7.0.2875

7.0.2885

7.0.290

7.0.2901

7.0.2908

7.0.291

7.0.2913

7.0.2920

7.0.2923

7.0.2928

7.0.2936

7.0.294

7.0.296

7.0.297

7.0.2972

7.0.2976

7.0.298

7.0.2994

7.0.3010

7.0.3018

7.0.3035

7.0.3038

7.0.3040

7.0.3052

7.0.3064

7.0.3076

7.0.3080

7.0.3086

7.0.3095

7.0.3113

7.0.3124

7.0.3126

7.0.3129

7.0.3140

7.0.3148

7.0.3153

7.0.3158

7.0.3163

7.0.3176

7.0.318

7.0.3188

7.0.3198

7.0.3206

7.0.321

7.0.3211

7.0.3212

7.0.3225

7.0.3227

7.0.3237

7.0.3240

7.0.3242

7.0.3245

7.0.3250

7.0.3260

7.0.3278

7.0.3279

7.0.3291

7.0.3300

7.0.3309

7.0.3330

7.0.3336

7.0.3338

7.0.3343

7.0.335

7.0.3350

7.0.3351

7.0.3357

7.0.336

7.0.3365

7.0.3377

7.0.3387

7.0.339

7.0.3393

7.0.3403

7.0.3405

7.0.341

7.0.3413

7.0.3426

7.0.3437

7.0.344

7.0.3442

7.0.3445

7.0.3448

7.0.3453

7.0.3456

7.0.346

7.0.3464

7.0.3471

7.0.348

7.0.3480

7.0.35

7.0.350

7.0.3515

7.0.3517

7.0.352

7.0.3526

7.0.3538

7.0.354

7.0.3546

7.0.3548

7.0.3549

7.0.355

7.0.3557

7.0.3565

7.0.3579

7.0.358

7.0.3599

7.0.360

7.0.361

7.0.3611

7.0.3617

7.0.362

7.0.363

7.0.365

7.0.3652

7.0.366

7.0.367

7.0.3679

7.0.368

7.0.3682

7.0.3688

7.0.369

7.0.3691

7.0.3697

7.0.3699

7.0.3705

7.0.3708

7.0.3786

7.0.38

7.0.3822

7.0.3826

7.0.3831

7.0.3840

7.0.3882

7.0.3887

7.0.39

7.0.3903

7.0.3911

7.0.3914

7.0.3918

7.0.3922

7.0.3928

7.0.3930

7.0.3935

7.0.3939

7.0.3949

7.0.395

7.0.3952

7.0.3956

7.0.3958

7.0.3962

7.0.3965

7.0.3966

7.0.3970

7.0.3974

7.0.3975

7.0.3976

7.0.398

7.0.3980

7.0.3987

7.0.399

7.0.3993

7.0.4019

7.0.403

7.0.4034

7.0.404

7.0.4041

7.0.4066

7.0.407

7.0.4078

7.0.4084

7.0.409

7.0.4090

7.0.4093

7.0.4098

7.0.4099

7.0.410

7.0.4100

7.0.4102

7.0.4114

7.0.4115

7.0.4116

7.0.4123

7.0.4129

7.0.413

7.0.4135

7.0.414

7.0.4142

7.0.4144

7.0.4148

7.0.4150

7.0.4156

7.0.4158

7.0.416

7.0.4161

7.0.4166

7.0.4176

7.0.4188

7.0.419

7.0.4193

7.0.4194

7.0.422

7.0.4222

7.0.4223

7.0.4226

7.0.4227

7.0.423

7.0.4230

7.0.4232

7.0.4235

7.0.4239

7.0.4245

7.0.4248

7.0.4250

7.0.4255

7.0.4257

7.0.426

7.0.4260

7.0.427

7.0.431

7.0.4310

7.0.4312

7.0.4313

7.0.432

7.0.4341

7.0.4344

7.0.4345

7.0.4346

7.0.4349

7.0.437

7.0.438

7.0.4395

7.0.4415

7.0.4453

7.0.4518

7.0.4541

7.0.4543

7.0.4547

7.0.4578

7.0.4585

7.0.4588

7.0.4596

7.0.4597

7.0.4604

7.0.4652

7.0.4660

7.0.4663

7.0.4665

7.0.4671

7.0.4676

7.0.4699

7.0.47

7.0.4717

7.0.4720

7.0.4741

7.0.4748

7.0.4751

7.0.4758

7.0.4762

7.0.4763

7.0.4766

7.0.4771

7.0.4773

7.0.4808

7.0.4810

7.0.4813

7.0.4815

7.0.4816

7.0.4825

7.0.4829

7.0.4832

7.0.4836

7.0.4844

7.0.4845

7.0.4848

7.0.4849

7.0.4868

7.0.4877

7.0.4917

7.0.4922

7.0.4972

7.0.4976

7.0.4978

7.0.4981

7.0.5029

7.0.5045

7.0.5058

7.0.5065

7.0.5068

7.0.5069

7.0.5077

7.0.5079

7.0.5080

7.0.5096

7.0.5098

7.0.5108

7.0.528

7.0.529

7.0.53

7.0.530

7.0.533

7.0.534

7.0.537

7.0.538

7.0.54

7.0.542

7.0.543

7.0.546

7.0.548

7.0.549

7.0.55

7.0.551

7.0.556

7.0.557

7.0.559

7.0.56

7.0.563

7.0.566

7.0.567

7.0.568

7.0.57

7.0.572

7.0.580

7.0.581

7.0.586

7.0.587

7.0.590

7.0.591

7.0.592

7.0.595

7.0.596

7.0.599

7.0.601

7.0.602

7.0.606

7.0.608

7.0.612

7.0.613

7.0.616

7.0.617

7.0.620

7.0.621

7.0.622

7.0.625

7.0.626

7.0.629

7.0.636

7.0.640

7.0.645

7.0.647

7.0.650

7.0.653

7.0.654

7.0.657

7.0.658

7.0.662

7.0.664

7.0.67

7.0.69

7.0.71

7.0.72

7.0.723

7.0.724

7.0.725

7.0.729

7.0.730

7.0.734

7.0.738

7.0.739

7.0.743

7.0.747

7.0.748

7.0.75

7.0.753

7.0.755

7.0.756

7.0.759

7.0.76

7.0.761

7.0.762

7.0.765

7.0.766

7.0.774

7.0.775

7.0.778

7.0.782

7.0.79

7.0.791

7.0.796

7.0.797

7.0.8

7.0.804

7.0.81

7.0.810

7.0.813

7.0.814

7.0.817

7.0.818

7.0.82

7.0.823

7.0.834

7.0.835

7.0.838

7.0.841

7.0.844

7.0.85

7.0.859

7.0.86

7.0.865

7.0.89

7.0.890

7.0.892

7.0.894

7.0.90

7.0.905

7.0.907

7.0.911

7.0.912

7.0.918

7.0.927

7.0.929

7.0.931

7.0.943

7.0.944

7.0.948

7.0.949

7.0.953

7.0.954

7.0.955

7.0.959

7.0.961

7.0.965

7.0.966

7.0.972

7.0.973

7.0.977

7.0.979

7.0.98

7.0.984

8.*

8.0.5124

8.0.5125

8.0.5129

8.0.5151

8.0.5159

8.0.5163

8.0.5167

8.0.5174

8.0.5181

8.0.5185

8.0.5199

8.0.5209

8.0.5219

8.0.5220

8.0.5237

8.0.5239

8.0.5312

8.0.5341

8.0.5353

8.0.5355

8.0.5358

8.0.5359

8.0.5362

8.0.5403

8.0.5409

8.0.5416

8.0.5438

8.0.5440

8.0.5466

8.0.5469

8.0.5489

8.0.5496

8.0.5516

8.0.5567

8.0.5570

8.0.5571

8.0.5572

8.0.5574

8.0.5579

8.0.5580

8.0.5584

9.*

9.0.5598

9.1.0

9.1.1

9.1.2

9.1.3

9.2.10

9.2.11

9.2.12

9.2.4

9.2.7

9.2.8

9.2.9

9.3.0

9.3.11

9.3.13

9.3.14

9.3.15

9.3.16

9.3.19

9.3.2

9.3.22

9.3.3

9.3.4

9.3.6

9.3.7

9.3.8

9.4.0

9.4.1

9.4.11

9.4.13

9.4.2

9.4.3

9.5.0

9.5.13

9.5.2

9.5.3

9.5.8

v4.*

v4.0.0

v4.0.1

v4.0.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34840.json"